PC Press 1997 July

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Text File | 1991-04-15 | 71KB | 1,838 lines

unidirectional mode for one line 27 64 ESC @ Initialize printer 27 85 48 ESC U 0 Cancel unidirectional mode 27 85 49 ESC U 1 Select unidirectional mode 27 115 48 ESC s 0 Turn half speed mode off 27 115 49 ESC s 1 Turn half speed mode on % Vertical/Horizontal Motion: % Decimal ASCII Description 8 BS Backspace 9 HT Horizontal tab 10 LF Line Feed 11 VT Vertical Tab 12 FF Form Feed 27 47 c ESC / c Select vertical tab channel (c=0..7) 27 48 ESC 0 Select 8 lines per inch 27 49 ESC 1 Select 7/72 inch line spacing 27 50 ESC 2 Select 6 lines per inch 27 51 n ESC 3 n Select n/216 inch line spacing (n=0..255) 27 65 n ESC A n Select n/72 inch line spacing (n=0..85) 27 66 0 ESC B NUL Clear Vertical tabs 27 66 tabs ESC B tabs Select up to 16 vertical tabs where tabs are ascending values from 1..255 ending with NUL 27 67 n ESC C n Select page length in lines (n=1..127) 27 67 48 n ESC C 0 n Select page length in inches (n=1..22) 27 68 0 ESC D NUL Clears all horizontal tables 27 68 tabs 0 ESC D tabs NUL Sets up to 32 horizontal tabs with ascending values 1-137. NUL or a value less than previous tab ends command. 27 74 n ESC J n Immediate n/216 inch line feed (n=0..255) 27 78 n ESC N n Select skip over perforation (n=1..127) 27 79 ESC O Cancel skip over perforation 27 81 n ESC Q n Set right margin (n=column) 27 98 b c 0 ESC b c NUL Clear vertical tabs in channel (c=0..7) 27 98 c tabs ESC b c tabs Select up to 16 vertical tabs in channels (c=0..7) where tabs are ascending values from 1..255 ending with NUL 27 101 48 s ESC e 0 s Set horizontal tab to increments of 's' 27 101 49 s ESC e 1 s Set vertical tab to increments of 's' 27 102 48 s ESC f 0 s Set horizontal skip to increments of 's' 27 102 49 s ESC f 1 s Set vertical skip to increments of 's' 27 106 n ESC j n Reverse linefeed (n/216 inch after buffer) 27 108 n ESC l n Set left margin (n=column) % Printing Style: % Decimal ASCII Description 27 33 n ESC ! n Master select where n is a combination of: 0 Pica 16 Double Strike 1 Elite 32 Double Wide 4 Condensed 64 Italic 8 Emphasized 128 Underline Pica & Elite and Condensed/Emphasized are mutually exclusive 27 107 48 ESC k 0 Select NLQ Roman font 27 107 49 ESC k 1 Select NLQ Sans Serif font 27 120 48 ESC x 0 Select draft mode 27 120 49 ESC x 1 Select NLQ mode % Print Size and Character Width: % Decimal ASCII Description 14 SO Select double width for one line 15 SI Select condensed mode 18 DC2 Cancel condensed mode 20 DC4 Cancel one line double width mode 27 14 ESC SO Double width for one line (duplicate) 27 15 ESC SI Select condensed mode (duplicate) 27 77 ESC M Select elite width (12 cpi) 27 80 ESC P Select pica width (10 cpi) 27 87 48 ESC W 0 Cancel double width mode 27 87 49 ESC W 1 Select double width mode % Print Enhancement: % Decimal ASCII Description 27 45 48 ESC - 0 Cancel underlining 27 45 49 ESC - 1 Select underlining 27 69 ESC E Select emphasized mode 27 70 ESC F Cancel emphasized mode 27 71 ESC G Select double strike mode 27 72 ESC H Cancel double strike mode 27 83 48 ESC S 0 Select superscript 27 83 49 ESC S 1 Select subscript 27 84 ESC T Cancel superscript/subscript % Character Sets: % Decimal ASCII Description 27 52 ESC 4 Select italic mode 27 53 ESC 5 Cancel italic mode 27 54 ESC 6 Enable printing of characters (128-159,255) 27 55 ESC 7 Cancel [ESC 6] command 27 82 n ESC R n Select International character set where numeric 'n' is: 0 USA 7 Spain I 1 France 8 Japan 2 Germany 9 Norway 3 United Kingdom 10 Denmark II 4 Denmark I 11 Spain II 5 Sweden 12 Latin America 6 Italy 27 116 0 ESC t NUL Select italic character set 27 116 1 ESC t SOH Select Epson character set % User Defined Characters: % Decimal ASCII Description 27 37 0 ESC % NUL Selects normal character set 27 37 1 ESC % SOH Selects user defined set 27 38 0 ESC & NUL ? Select user defined chars (see manual) 27 58 0 0 0 ESC : NUL NUL NUL Copy ROM into RAM % Graphics Character Sets: % Decimal ASCII Description 27 42 0 n1 n2 ESC * NUL n1 n2 Select single density graphics 27 42 1 n1 n2 ESC * SOH n1 n2 Select double density graphics 27 63 s n ESC ? s n Reassign graphics mode 's'=(K,L,Y or Z) to mode 'n'=(0..6) 27 75 n1 n2 ESC K n1 n2 Single density graphics (60 dpi) 27 76 n1 n2 ESC L n1 n2 Double density graphics (120 dpi) 27 89 n1 n2 ESC Y n1 n2 Hi-speed double den graphics (120 dpi) 27 90 n1 n2 ESC Z n1 n2 Quad density graphics (240 dpi) 27 94 m n1 n2 ESC ^ m n1 n2 Select 9 pin graphics mode number of columns = n1 + (n2 * 256) % Other: % Decimal ASCII Description 13 CR Carriage Return 24 CAN Cancel text in line (but not control codes) 127 DEL Delete character (but not control codes) 27 32 n ESC SP n Space in n/72 inch following each NLQ char 27 35 ESC # MSB control sequence cancel 27 36 ESC $ Select absolute dot position 27 61 ESC = MSB = 0 27 62 ESC > MSB = 1 27 73 48 ESC I 0 Cancel above [ESC I 1] 27 73 49 ESC I 1 Printable codes expansion (0-31,128-159) 27 92 ESC \ Select relative dot position 27 97 n ESC a n NLQ justification where numeric 'n' is: 0 left justification (default) 1 center 2 right justification 3 full justification 27 112 ESC p Select/cancel proportional mode - the codes listed are relative to the Epson LX 800 - in several situations where a numeric value of zero or one is required, the ASCII value of the number can be substituted :hard disks drives:drive specifications:disk drives:hard drives ^Hard Drive Specifications % Avg Miscellaneous % Manufacturer MB Cyl Hds Access Information Alloy ID-160 125 30 Atasi AT3020 635 3 Wedge servo Atasi AT3033 635 5 Wedge servo Atasi AT3046 635 7 Atasi AT3051 703 7 Atasi AT3085 1024 8 Bull D530 987 3 Bull D550 987 5 Bull D570 987 7 Bull D585 987 7 Bull D530 1166 3 CDC Wren I 9415-21 697 3 STnn, MFM, Voice coil CDC Wren I 9415-36 697 5 STnn, MFM, Voice coil CDC Wren II 9415-25 615 4 STnn, MFM, Voice coil CDC Wren II 9415-30 989 3 STnn, MFM, Voice coil CDC Wren II 9415-38 733 5 STnn, MFM, Voice coil CDC Wren II 9415-48 925 5 STnn, MFM, Voice coil CDC Wren II 9415-51 42 989 5 28 STnn, MFM, Voice coil CDC Wren II 9415-67 925 7 STnn, MFM, Voice coil CDC Wren II 9415-86 69 925 9 STnn, MFM, Voice coil CDC Wren II 9416-182 144 969 9 STnn, MFM, Voice coil CDC Wren V 380 15 16 ESDI/SCSI, FH CDC Wren V 702 15 16 ESDI/SCSI, FH CDC Wren VI 766 15 16.5 ESDI/SCSI, FH CDC Wren VII 1.2G 15 16.5 SCSI, FH CMI CM3426 612 4 CMI CM5205 256 4 CMI CM5410 256 4 CMI CM5616 256 4 CMI CM6426 615 4 CMI CM6426S 640 4 CMI CM6640 640 4 CMS F40-K 42 1024 5 22 STnn, MFM, Voice coil CMS F60-K 42 1024 7 STnn, MFM, Voice coil CMS F70-K 42 1024 8 STnn, MFM, Voice coil CMS F80-K 42 1024 9 STnn, MFM, Voice coil Columbia SCSI 42 834 3 19 SCSI, RLL, Band stepper Core AT40F 40 564 4 10 ESDI, MFM, Voice coil Core AT43 43 988 5 20 STnn, MFM, Voice coil Core HC150 150 1024+ 18 ESDI Emerald DOS 150-3000 150 1024+ ESDI Emulex ATS-170 142 1022 SCSI & ESDI Emulex ATS-380 310 1222 SCSI & ESDI FlashCard 49 49 615 6 28 STnn, RLL, Voice coil Fuji 302-13 10 612 2 Fuji 302-26 20 612 4 Fujitsu M2230AS 320 2 Fujitsu M2233AS 10 320 4 Fujitsu M2234AS 320 6 Fujitsu M2235AS 21 320 8 56 Fujitsu M2241AS 754 4 Fujitsu M2242AS 43 754 7 33 STnn, MFM, Voice coil Fujitsu M2243AS 72 754 11 33 STnn, MFM, Voice coil Fujitsu M2263 778u 14 16 ESDI/SCSI, FH Hitachi DK511-5 699 7 Hitachi DK511-8 823 10 Hitachi DK515C-78 780u 8 16 SCSI, FH Hitachi DK515-78 780u 8 16 ESDI, FH IMI 5006H 306 2 IMI 5012H 306 4 IMI 5018H 306 6 Imprimis (see CDC) Irwin 416 819 2 Irwin 510 628 2 HD/tape Irwin 516 819 2 HD/tape Irwin 561 180 4 Kalok KL320 26u 615 4 40 STnn, MFM, Band stepper Kalok KL330 38u 615 4 40 STnn, RLL, Band stepper Maxtor XT1065 52 918 7 28 STnn, Voice coil Maxtor XT1085 68 1024 8 28 STnn, Voice coil Maxtor XT1105 83 918 11 28 STnn, Voice coil Maxtor XT1140 112 918 15 28 STnn, Voice coil Maxtor XT1190 150 1224 28 STnn, Voice coil Maxtor XT2085 1224 7 28 STnn, Voice coil Maxtor XT2140 1224 11 STnn, Voice coil Maxtor XT2190 160 1224 15 STnn, Voice coil Maxtor XT4170E 179u 1224 7 14 ESDI, MFM, FH Voice coil Maxtor XT4230E 231u 1224 9 16 ESDI, MFM, FH Voice coil Maxtor XT4380E 384u 1224 15 16 ESDI, MFM, FH Voice coil Maxtor XT4380S 384u 1224 16 SCSI, MFM, FH Voice coil Maxtor XT8380E 410u 14.5 ESDI, FH Maxtor XT8380S 410u 14.5 SCSI, FH Maxtor XT8760E 768u 16.5 ESDI, FH Maxtor XT8760S 768u 16.5 SCSI, FH Micropolis 1302 830 3 Micropolis 1303 830 5 Micropolis 1304 830 6 Micropolis 1323 1024 4 Micropolis 1323A 1024 5 Micropolis 1324 1024 6 Micropolis 1324A 1024 7 Micropolis 1325 1024 8 Micropolis 1333A 44 1024 5 28 STnn, MFM, Voice coil Micropolis 1335 71 1024 8 30 Micropolis 1355 142 1022 Micropolis 1518 1.2Gu 15 14 ESDI, FH Micropolis 1558 382u 15 18 ESDI, FH Micropolis 1568 765u 15 16 ESDI, FH Micropolis 1578 382u 15 18 SCSI, FH Micropolis 1588 765u 15 16 SCSI, FH Micropolis 1598 1.2Gu 15 14 SCSI, FH Microscience HH312 10 306 4 Microscience HH325 20 612 4 Microscience HH612 10 306 4 Microscience HH725 21 612 4 Band stepper Microscience HH1050 44 1024 5 28 STnn, MFM, Voice coil Miniscribe 1006 306 2 Miniscribe 1012 306 4 Miniscribe 2006 306 2 Miniscribe 3012 10 612 4 Miniscribe 3053 44 1024 6 25 STnn, MFM, Voice coil Miniscribe 3212 10 612 4 Miniscribe 3412 306 4 Miniscribe 3425 20 615 4 Miniscribe 3438 31.2 615 4 Miniscribe 3650 50u 809 6 61 STnn, MFM, linear drive Miniscribe 3650F 50u 809 6 46 STnn, MFM, linear drive Miniscribe 3675 75u 809 6 61 STnn, MFM, linear drive Miniscribe 4010 480 2 Miniscribe 4020 480 4 Miniscribe 6032 26 1024 3 Miniscribe 6053 43 1024 5 28 STnn, MFM, FH Voice coil Miniscribe 6085 71 1024 8 Miniscribe 6128 104 1024 8 Miniscribe 8051A 51u 745 4 28 STnn, MFM, Voice coil Miniscribe 8212 615 2 Miniscribe 8425 20 615 4 STnn, MFM, 3½ Miniscribe 8438 31.2 615 4 Miniscribe 9380E 382u 1224 15 16 ESDI, RLL, FH Voice coil Miniscribe 9380S 382u 1224 15 16 SCSI, RLL, FH Voice coil Miniscribe 9780E 781u 15 17 ESDI, FH Voice coil Mitsubisi MR535 42 981 6 STnn, MFM, 5¼ Voice coil NEC D5662 385u 18 ESDI, FH NEC D5682 765u 18 16 ESDI, FH NEC D5862 385u 18 SCSI, FH NEC D5882 765u 18 16 SCSI, FH NEC 5124 310 4 NEC 5126 612 4 NEC 5146 615 8 Newberry Penny 340 615 8 Northgate Turbo 42 809 6 36 STnn, RLL, Voice coil Plus Hardcard 40 42 612 4 40 STnn, RLL, Voice coil Priam ID45ATD2 42 1166 5 20 STnn, MFM, Voice coil Priam ID130 130 1224 STnn Priam ID40 987 5 Priam ID60 987 7 Priam V130 987 3 STnn Priam V185 1166 7 Priam 638 382u 15 18 ESDI, 5¼ Priam 676 765u 15 14 ESDI, 5¼ Priam 738 382u 15 18 SCSI, 5¼ Priam 776 765u 15 14 SCSI, 5¼ Quadram Q520 512 4 Quadram Q530 512 6 Quadram Q540 512 8 Rodime RO101 192 2 Rodime RO102 192 4 Rodime RO103 192 6 Rodime RO104 192 8 Rodime RO201 320 2 Rodime RO202 320 4 Rodime RO203 320 6 Rodime RO204 320 8 Rodime RO201E 640 2 Rodime RO202E 640 4 Rodime RO203E 33 640 6 Rodime RO204E 640 8 Rodime RO252 10 306 4 Rodime RO352 10 306 4 Rodime RO3055 45 872 7 STnn, MFM, Voice coil RMS 503 153 2 RMS 506 153 4 RMS 512 153 8 Seagate ST125 21 615 4 28 STnn, MFM, Band stepper Seagate ST125N 22 407 4 SCSI, RLL, Band stepper Seagate ST138 32 615 6 28 STnn, MFM, 3½ Band stepper Seagate ST138N 31 615 4 28 SCSI, RLL, Band stepper Seagate ST138R 33 615 4 28 STnn, RLL, Band stepper Seagate ST151 43 977 5 STnn, MFM, Voice Coil Seagate ST157A 49 560 6 28 IDE, 3½ Seagate ST157N 49 615 6 28 SCSI, 3½ RLL, Band stepper Seagate ST157R 49 615 6 28 STnn, 3½ RLL, Voice Coil Seagate ST177N 61 921 5 SCSI, RLL, Voice Coil Seagate ST206 306 2 STnn, MFM, Band stepper Seagate ST213 11 615 2 STnn, MFM, Band stepper Seagate ST225 21 615 4 65 STnn, MFM, 5¼ Band stepper Seagate ST225N 21 615 4 65 SCSI, MFM, 5¼ Band stepper Seagate ST225R 21 667 2 STnn, RLL, 5¼ Band stepper Seagate ST238R 31 615 4 65 STnn, RLL, Band Stepper Seagate ST250R 42 667 4 STnn, RLL, Band stepper Seagate ST251 42 820 6 40 STnn, MFM, 5¼ Band stepper Seagate ST251-1 43 820 6 28 STnn, MFM, 5¼ Band stepper Seagate ST251N0 43 820 4 40 SCSI, RLL, 5¼ Band stepper Seagate ST251N1 43 630 4 SCSI, RLL, 5¼ Band stepper Seagate ST251R 43 820 6 40 STnn, RLL, 5¼ Band stepper Seagate ST277 66 820 6 STnn, MFM, 5¼ Band stepper Seagate ST277N0 65 820 6 40 SCSI, RLL, 5¼ Band stepper Seagate ST277N1 65 628 6 SCSI, RLL, 5¼ Band stepper Seagate ST277R 65 820 6 40 STnn, RLL, 5¼ Band stepper Seagate ST280A 72 29 IDE, 5¼ Seagate ST296N 85 820 6 28 SCSI, RLL, 5¼ Band stepper Seagate ST406 5 306 2 STnn, MFM, Band stepper Seagate ST412 10 306 4 STnn, MFM, FH Band stepper Seagate ST419 15 306 6 STnn, MFM, Band stepper Seagate ST425 20 306 8 STnn, MFM, Band stepper Seagate ST506 5 153 4 STnn, MFM, FH Band stepper Seagate ST1096N 84 906 7 SCSI, RLL, Voice coil Seagate ST1102A 89 29 IDE, 3½ Seagate ST1144 125 19 IDE, 3½ Seagate ST1239 211 15 IDE, 3½ Seagate ST4026 21 615 4 STnn, MFM, Voice coil Seagate ST4038 32 733 5 40 STnn, MFM, FH Voice coil Seagate ST4051 43 977 5 40 STnn, MFM, Voice coil Seagate ST4053 44 1024 5 28 STnn, MFM, Voice coil Seagate ST4077R 65 1024 5 28 STnn, MFM, Voice coil Seagate ST4096 80 1024 9 28 STnn, MFM, FH Voice coil Seagate ST4144R 122 1024 9 28 STnn, RLL, FH Voice coil Shugart SA 604 160 4 Shugart SA 606 160 6 Shugart SA 612 306 4 Shugart SA 712 320 4 SPC Scorecard 44 44 753 7 STnn, MFM, Voice coil Syquest SQ306RD 306 2 Syquest SQ312RD 615 2 Syquest SQ325F 612 4 Syquest SQ338F 612 6 Tandon TM252 10 306 4 Tandon TM262 20 615 4 Tandon TAN501 306 2 Tandon TAN502 306 4 Tandon TAN503 306 6 Tandon TM602S 153 4 Tandon TM603S 153 6 Tandon TM603SE 230 6 Tandon TM702AT 615 4 Tandon TM703 695 5 Tandon TM703AT 733 5 Tandon TM755 981 5 Tandy SCSI 80 823 6 28 SCSI, RLL, Band stepper Toshiba MK53F 830 5 Toshiba MK54F 49 830 7 25 STnn, MFM, 3½ Voice coil Toshiba MK56F 72 830 10 25 Toshiba MK134FA 733 7 25 STnn Toshiba MK358FA 765u 15 16 ESDI, FH Toshiba MK358FB 765u 15 16 SCSI, FH Tulin 226 640 4 Tulin 240 640 6 Tulin 326 20 640 4 Tulin 340 30 640 6 WD93024A 21.6 28 STnn, MFM, 3½ Band stepper WD93024X 21.6 39 STnn, MFM, 3½ Band stepper WD93028A 21.6 69 STnn, MFM, 3½ Band stepper WD93028X 21.6 70 STnn, MFM, 3½ Band stepper WD93034X 32.4 39 STnn, MFM, 3½ Band stepper WD93038X 32.4 70 STnn, MFM, 3½ Band stepper WD93044A 43.2 28 STnn, MFM, 3½ Band stepper WD93044X 43.2 39 STnn, MFM, 3½ Band stepper WD93048A 43.2 69 STnn, MFM, 3½ Band stepper WD93048X 43.2 70 STnn, MFM, 3½ Band stepper WD95024A 20 28 STnn, MFM, 5¼ Band stepper WD95028AD 20 69 STnn, MFM, 5¼ Band stepper WD95028X 20 70 STnn, MFM, 5¼ Band stepper WD95038X 30 70 STnn, MFM, 5¼ Band stepper WD95044A 40 28 STnn, MFM, 5¼ Band stepper WD95048AD 40 69 STnn, MFM, 5¼ Band stepper WD95048X 40 70 STnn, MFM, 5¼ Band stepper WDAC140 42.5 19 STnn, MFM, 3½ Voice coil WDAC280 85.1 19 STnn, MFM, 3½ Voice coil WDSC320 320 SCSI, 3½ WDSC8320 320 SCSI, 3½ - STnn indicates Seagate ST412/ST506 compatible - 3½ indicates 3.5 inch half height drive - 5¼ indicates 5.25 inch half height drive - FH indicates Full Height 5.25 inch drive - 'u' in filesize indicates unformatted spec - formatted capacity is related to BIOS and may vary with different BIOS and OEM versions - read/write heads should normally never touch hard disk media - standard AT hard disk controllers do not use DMA for disk I/O due to the slow speed of the 8 Bit DMA chips used; Port I/O is used instead for an actual increase in performance - with some XT and ESDI systems it is necessary to use debug to execute the ROM disk format code; The usual method is to set AH=Drive, AL=Interleave and jump to the code at C800:5 via the G =C800:5 command (some systems locate this code at C600:5, CA00:5 and CC00:5) - DOS version and disk size determine cluster size; DOS 2.x always has cluster size of 8K, while DOS 3.x+ has variable cluster sizes: 2 - 16 Mb partitions have a cluster size of 8K 16 - 128 Mb partitions have a cluster size of 2K 128 - 256 Mb partitions have a cluster size of 4K 256 - 512 Mb partitions have a cluster size of 8K :Hayes modem info:modem commands ^Hayes Command Set / Register Formats +++ standard escape sequence (see S2 below) Comma standard pause character (see S8 below) AT standard attention sequence ATA force immediate answer ATC0 transmitter off ATC1 transmitter on ATD dial (ATD number) ATDP pulse dial (ATDP number) ATDT tone dial (ATDT number) ATE0 disable local character echo ATE1 enable local character echo ATF0 Half Duplex (modem echoes characters) ATF1 Full Duplex (modem does not echo characters) ATH0 force line on hook ATH1 force line off hook ATH2 force line special off hook (used for HAM radio) ATI0 request product code, formatted PPR, PP=prod., R=rev. ATI1 request ROM check sum ATL1 speaker volume low (modem specific) ATL2 speaker volume medium (modem specific) ATL3 speaker volume high (modem specific) ATM0 speaker always off ATM1 speaker on except while carrier present ATM2 speaker always on ATM3 speaker on except while dialing and carrier present ATO force modem into on-line state ATP sets modem to default pulse dial ATQ0 modem returns result codes ATQ1 modem does not return result codes ATR sets modem to answer mode after dialing out ATSn where Sn is S register number 'n' (see registers below) ATT sets modem to default tone dial ATV0 send numeric codes ATV1 send word result codes ATX0 basic result code set "CONNECT", no dial tone detect ATX1 extended result code set "CONNECT 1200", no dialtone detect ATX2 wait for dial tone, extended result codes ATX3 detect busy signal, extended result codes ATX4 wait for dial tone, detect busy, extended result codes ATZ reset to power up condition ^Hayes 2400 Compatible Modem Commands ATB0 CCITT V.22 at 1200 bps ATB1 BELL 212A at 1200 bps AT&C DCD always on AT&C1 DCD on while carrier present AT&D DTR ignored AT&D1 DTR fail disconnect enabled AT&D2 DTR fail disconnect enabled (auto answer off) AT&D3 DTR fail disconnect enabled (reset modem) AT&F restore to factory configuration AT&G no guard tone AT&G1 550 Hz guard tone AT&G2 1800 Hz guard tone AT&J RJ11/RJ41S/RJ45 jack AT&J2 RJ12/RJ13 jack AT&L regular phone line AT&L1 leased line AT&M async operation AT&M1 async/sync operation AT&M2 sync auto dial AT&M3 sync manual dial AT&P 39/61 pulse make/break ratio AT&P1 33/67 pulse make/break ratio AT&T4 grant RDL test request AT&T5 deny RDL test request AT&W write current registers to non-volatile memory AT&X sync clock internal AT&X1 sync clock external AT&X2 sync clock slaved AT&Z store dial command line ^Hayes Compatible Modem Registers Not all modems support all of these registers and some modems have registers other than those listed here. Also note, some are read only. to set a register use: AT Sr=## (cr) to read the register: AT Sr? (cr) Where "r" is the register and (cr) is a carriage return % The following represent conventions used in the tables below: () indicates defaults for Smartmodem 1200 ** indicates possible inconsistencies across modems % Reg Values Register function S0 0-255 ring to answer on (0=don't answer) S1 0-255 ring count (clear after 8 sec) (read only) S2 0-255 escape char, normally "+", 128-255 disable escape S3 0-127 end of line character (0x0D/CR) S4 0-127 line feed character (0x0A/LF) S5 0-32,127 backspace character (0x08/BS) S6 2-255 pause before dialing in seconds (2) S7 1-255 wait for carrier in seconds (30) S8 0-255 pause for comma in dial string in seconds (2) S9 1-255 carrier detect response time in 1/10 second (6) S10 1-255 carrier loss delay in 1/10 second, 255=ignore CD (7) S11 50-255 touch tone dial speed, in milliseconds (70) S12 20-255 escape guard time, in 1/50 second,0=no delay (50) │7│6│5│4│3│2│1│0│ S13 power up async data format │ │ │ │ │ │ │ └──── unused │ │ │ │ │ │ └───── result code, 0=basic, 1=extended │ │ │ │ │ └────── parity, 0=disabled, 1=enabled │ │ │ │ └─────── parity, 0=odd ,1=even │ │ │ └──────── data bits, 0=7 bits, 1=8 bits │ │ └───────── undefined │ └────────── buffer ovfw flag, 0=disabled,1=enabled └─────────── 8th bit, 0=space,1=mark (8 bit only) │7│6│5│4│3│2│1│0│ S14 option register status data format │ │ │ │ │ │ │ └──── unused ** │ │ │ │ │ │ └───── local echo, 0=disabled, 1=enabled │ │ │ │ │ └────── result codes, 0=enabled,1=disabled │ │ │ │ └─────── result codes, 0=numeric,1=word │ │ │ └──────── command recognition, 0=enable,1=disable │ │ └───────── dial method, 0=touch tone, 1=pulse │ └────────── unused ** └─────────── 0=answer, 1=originate ** S15 flag register ** │7│6│5│4│3│2│1│0│ S16 test status │ │ │ │ │ │ │ └──── analog loop, 0=inactive, 1=active │ │ │ │ │ │ └───── unused │ │ │ │ │ └────── digital loop, 0=inactive, 1=active │ │ │ │ └─────── remote req digital loop,0=inact.,1=active │ │ │ └──────── remote digital loop,0=inact.,1=active │ │ └───────── self test RDL, 0=inactive, 1=active │ └────────── self test analog loop,0=inactive,1=active └─────────── unused S18 0-255 remote test timer in seconds │7│6│5│4│3│2│1│0│ S21 option status │ │ │ │ │ │ │ └──── jack type, 0=RJ11,RJ41,RJ45,1=RJ12,RJ13 │ │ │ │ │ │ └───── unused │ │ │ │ │ └────── CTS state, 0=follows RTS, 1=forced on │ │ │ └─┴─────── DTR modem behavior (see below) │ │ └────────── DCD, 0=forced on, 1=follows carrier │ └─────────── DSR, 0=forced on, 1=behaves normally └──────────── long space disconnect,0=disabled,1=enabled % Bits % 43 DTR Modem Behavior Bits 00 ignore DTR 01 assume command state when DTR drops 10 assume command state and disable auto-answer when DTR drops 11 reset when DTR drops │7│6│5│4│3│2│1│0│ S22 option status │ │ │ │ │ │ └─┴──── speaker volume, 01=low,10=med,11=high │ │ │ │ └─┴─────── speaker setting (see below) │ └─┴─┴────────── X command in effect └─────────────── make/break ratio, 0=39/61, 1=33/67 % Bits % 32 S22 Speaker Setting 00 speaker always off 01 speaker on until carrier detected 10 speaker always on 11 speaker off during dialing, then on until CD % Bits % 654 S22 X Command in Effect 100 X1 command in effect 101 X2 command in effect 110 X3 command in effect 111 X4 command in effect │7│6│5│4│3│2│1│0│ S23 option status │ │ │ │ │ │ │ └──── remote dig.loop request,0=denied,1=ok │ │ │ │ │ └─┴───── baud rate (see table) │ │ │ │ └──────── unused │ │ └─┴───────── parity (see table) └─┴──────────── guard tone setting % Bits % 21 S23 Baud Rate Table 00 0-300 bps 01 600 bps 10 1200 bps 11 2400 bps % Bits % 54 S23 Parity Setting 00 even parity 01 parity bit always 0 10 odd parity 11 parity bit always 1 % Bits % 76 S23 Guard Tone Setting 00 no guard tones 01 550 hz guard tone 10 1800 hz guard tone S25 0-255 DTR detect delay in seconds (5) S26 0-255 RTS to CTS delay in milliseconds (1) │7│6│5│4│3│2│1│0│ S27 option status │ │ │ │ │ │ └─┴──── synch/async mode (see table) │ │ │ │ │ └─────── phone line, 0= public, 1=leased │ │ │ │ └──────── unused │ │ └─┴───────── clock type (see table) │ └──────────── protocol, 0=CCITT V.22, 1=Bell 212A └───────────── unused % Bits % 10 S27 Sync/Async mode 00 asynchronous mode 01 async/sync mode 10 sync auto-dial 11 sync manual dial % Bits % 45 S27 Clock Type 00 internal clock used 01 external clock used 10 slaved clock used :game port:joystick ^Joystick / Game Port (201h) │7│6│5│4│3│2│1│0│ Port at 201h used with Joysticks │ │ │ │ │ │ │ └──── joystick a, x coord (0 = timing active) │ │ │ │ │ │ └───── joystick a, y coord (0 = timing active) │ │ │ │ │ └────── joystick b, x coord (0 = timing active) │ │ │ │ └─────── joystick b, y coord (0 = timing active) │ │ │ └──────── joystick a, button 1 (0=pressed) │ │ └───────── joystick a, button 2 (0=pressed) │ └────────── joystick b, button 1 (0=pressed) └─────────── joystick b, button 2 (0=pressed) │7│6│5│4│3│2│1│0│ Port at 201h used with Paddles │ │ │ │ │ │ │ └──── paddle a coord (0 = timing active) │ │ │ │ │ │ └───── paddle b coord (0 = timing active) │ │ │ │ │ └────── paddle c coord (0 = timing active) │ │ │ │ └─────── paddle d coord (0 = timing active) │ │ │ └──────── paddle a, button (0=pressed) │ │ └───────── paddle b, button (0=pressed) │ └────────── paddle c, button (0=pressed) └─────────── paddle d, button (0=pressed) - accessed through port 201h - bits 3-0 are resistive inputs with the length of the pulse determined by 0-100K ohm resistive load. Use this formula: % time = 24.2µ + ( 0.011µ * resistance ) or % resistance = ( time - 24.2 ) / 0.011 - a read should be immediately preceded by a write (any data) to start timing for the resistive values. :Laserjet:HP Laserjet ^Hewlett Packard Laserjet Printer Control Codes % Printer Control and Orientation ESC E Reset printer ESC z Self Test ESC &l0O Portrait orientation ESC &l1O Landscape orientation ESC (s0P Select fixed space font ESC (s1P Select proportional font ESC (s0S Set upright character orientation ESC (s1S Set Italic character orientation ESC &l#X Select '#' number of copies ESC &l0H Eject page ESC &l1H Feed paper from tray ESC &l2H Feed paper manually ESC &l3H Feed envelope ESC &l0T Default stacking position ESC &l1T Togglestacking position % 8 Bit Symbol Set Selection ESC (8U Select Roman 8 symbol set ESC (8K Select Kana 8 symbol set ESC (8M Select Math 8 symbol set % 7 Bit Symbol Set Selection ESC (0U Select USASCII symbol set ESC (0B Select Line Draw symbol set ESC (0A Select Math symbol set ESC (0M Select Math 7 symbol set ESC (0Q Select Math 8a symbol set ESC (1Q Select Math 8b symbol set ESC (1U Select US Legal symbol set ESC (0E Select Roman Extension symbol set ESC (0D Select ISO Denmark/Norway symbol set ESC (1E Select ISO United Kingdom symbol set ESC (0F Select ISO France symbol set ESC (0G Select ISO German symbol set ESC (0I Select ISO Italy symbol set ESC (0S Select ISO Sweden/Finland symbol set ESC (1S Select ISO Spain symbol set ESC (15U Select PiFont symbol set ESC (2Q Select PiFonta symbol set % Font Management ESC (s3T Select Courier font ESC (s0T Select Line Printer font ESC (s1T Select Pica font ESC (s2T Select Elite font ESC (s4T Select Helvetica font ESC (s5T Select Times Roman (TMS RMN) font ESC (s6T Select Gothic font ESC (s7T Select Script font ESC (s8T Select Prestige font ESC *c#D Specify font ID '#' ESC *c#E Specify character code '#' ESC *c0F Delete all fonts, including permanent ESC *c1F Delete all temporary fonts ESC *c2F Delete last font ID specified ESC *c3F Delete last character code and font ID specified ESC *c4F Make last font ID temporary ESC *c5F Make last font ID permanent ESC *c6F Copy or assign last font ID specified ESC *c7F Reestablish ROM ESC *c8F Set primary font ESC *c9F Set secondary font ESC *c10F Set primary and secondary font default ESC )s#W <data> Create font header ESC (s#W <data> Download character ESC (#X <data> Designate downloaded font as primary ESC )#X <data> Designate downloaded font as secondary ESC (#@ Primary font default (see printer manual) ESC )#@ Secondary font default(see printer manual) % Pitch and Point Selection ESC (s10H Set 10 pitch ESC (s12H Set 12 pitch ESC (s16.6H Set 16.66 pitch ESC (s7V Set point size to 7 ESC (s8V Set point size to 8 ESC (s8.5V Set point size to 8.5 ESC (s10V Set point size to 10 ESC (s12V Set point size to 12 ESC (s14.4V Set point size to 14.4 % Page Dimensions ESC &l#P Set page length to '#' lines ESC &l#E Set top margin to '#' lines ESC &l#F Set text length to '#' lines ESC 9 Clear margins ESC &a#L Set left margin to column '#' ESC &a#M Set right margin to column '#' ESC &l#C Set vertical motion index to '#' 1/48" increments ESC &l#D Set lines per inch to '#', valid values are: 1, 2, 3, 4, 6, 8, 12, 16 or 24 ESC &k#H Set horizontal motion index where # is derived using # = (120.0 / cpi) (1/10 precision) % Cursor Positioning ESC &a#R Move to row '#' ESC &a#C Move to col '#' ESC &a#H Move to horizontal position '#' in decipoints ESC &a#V Move to vertical position '#' in decipoints ESC *p#X Move to horizontal position '#' in dots ESC *p#Y Move to vertical position '#' in dots ESC &f0S Push cursor position ESC &f1 Pop cursor position % Raster Graphics ESC *t75R Select 75 dots per inch graphics mode ESC *t100R Select 100 dots per inch graphics mode ESC *t150R Select 150 dots per inch graphics mode ESC *t300R Select 300 dots per inch graphics mode ESC *r0A Start graphics at left most position ESC *r1A Start graphics at current cursor ESC *b#W <data> Transfer '#' byte raster image as stream "<data>" ESC *rB End graphics % Advanced Graphics ESC *c#A Set horizontal rule/pattern size in dots ESC *c#H Set horizontal rule/pattern size in decipoints ESC *c#B Set vertical rule/pattern size in dots ESC *c#V Set vertical rule/pattern size in decipoints ESC *c0P Select black rule ESC *c2P Select gray scale pattern ESC *c3P Select HP-Defined pattern ESC *c#G Set grey scale pattern, where # is a value between [0..6] for HP defined patterns and [0..100] to specify percentage gray scaling. The mode depends on the rule/pattern selected using ESC *c?P ESC *c1G Vertical lines pattern ESC *c2G Horizontal lines pattern ESC *c3G Diagonal lines pattern (upward left to right) ESC *c4G Diagonal lines pattern (downward left to right) ESC *c5G Horizontal/vertical grid lines pattern ESC *c6G Diagonal grid pattern ESC *c#G Set gray scaling to '#' percent % Macro commands ESC &f#Y Identify macro as ID "#' ESC &f0X Start macro definition ESC &f1X Stop macro definition ESC &f2X Execute macro ESC &f3X Call macro ESC &f4X Enable auto macro overlay ESC &f5X Disable auto macro overlay ESC &f6X Delete all macros ESC &f7X Delete all temporary macros ESC &f8X Delete macro ID ESC &f9X Make macro temporary ESC &f10X Make macro permanent % Miscellaneous ESC (s#B Set stroke weight '#'=(7..-7), 7=bold, -7=light ESC &dD Set underline on ESC &d@ Set underline off ESC = Half line feed ESC Y Turn display functions mode on ESC Z Turn display functions mode off (default) ESC &p#X <data> Disable command interpretation for the '#' bytes following this command ESC &l0L Disable perforation skip ESC &l1L Enable perforation skip ESC &k0G Set line terminators to CR=CR, LF=LF, FF=FF ESC &k1G Set line terminators to CR=CR+LF, LF=LF, FF=FF ESC &k2G Set line terminators to CR=CR, LF=CR+LF, FF=CR+FF ESC &k3G Set line terminators to CR=CR+LF, LF=CR+LF, FF=CR+FF ESC &s0C Enable end of line wrap ESC &s1C Disable end of line wrap % Escape sequence combination rules: 1. The first 2 characters following the ESC must be the same. 2. The final character in any sequence other than the last must be changed to lower case. 3. The last character in the complete sequence must be changed to upper case. 4. Escape sequences must be specified in the order in which they should be performed. - the space following ESC is not included in the string :keyboard commands ^Keyboard Commands & Responses ^Commands System Issues to Keyboard (via 8042 port 60h) ED Set/Reset Mode Indicators, keyboard responds with ACK then waits for a following option byte. When the option byte is received the keyboard again ACK's and then sets the LED's accordingly. Scanning is resumed if scanning was enabled. If another command is received instead of the option byte (high bit set on) this command is terminated. Hardware defaults to these indicators turned off. │7-3│2│1│0│ Keyboard Status Indicator Option Byte │ │ │ └─── Scroll-Lock indicator (0=off, 1=on) │ │ └──── Num-Lock indicator (0=off, 1=on) │ └───── Caps-Lock indicator (0=off, 1=on) └─────── reserved (must be zero) EE Diagnostic Echo, keyboard echoes the EE byte back to the system without an acknowledgement. F0 PS/2 Select/Read Alternate Scan Code Sets, instructs keyboard to use one of the three make/break scan code sets. Keyboard responds by clearing the output buffer/typematic key and then transmits an ACK. The system must follow up by sending an option byte which will again be ACK'ed by the keyboard: 00 return byte indicating scan code set in use 01 select scan code set 1 (used on PC & XT) 02 select scan code set 2 03 select scan code set 3 F2 PS/2 Read Keyboard ID, keyboard responds with an ACK and a two byte keyboard ID of 83AB. F3 Set Typematic Rate/Delay, keyboard responds with ACK and waits for rate/delay byte. Upon receipt of the rate/delay byte the keyboard responds with an ACK, then sets the new typematic values and scanning continues if scanning was enabled. │7│6│5│4│3│2│1│0│ Typematic Rate/Delay Option Byte │ │ │ ├─┼─┼─┼─┼──── typematic rate indicator (see ~INT 16,3~) │ │ │ │ │ └─┴─┴─── A in period formula (see below) │ │ │ └─┴──────── B is period formula (see below) │ └─┴─────────── typematic delay └────────────── always zero delay = (rate+1) * 250 (in milliseconds) rate = (8+A) * (2**B) * 4.17 (in seconds, ± 20%) Defaults to 10.9 characters per second and a 500ms delay. If a command byte (byte with high bit set) is received instead of an option byte this command is cancelled. F4 Enable Keyboard, cause the keyboard to clear its output buffer and last typematic key and then respond with an ACK. The keyboard then begins scanning. F5 Default w/Disable, resets keyboard to power-on condition by clearing the output buffer, resetting typematic rate/delay, resetting last typematic key and setting default key types. The keyboard responds with an ACK and waits for the next instruction. F6 Set Default, resets to power-on condition by clearing the output buffer, resetting typematic rate/delay and last typematic key and sets default key types. The keyboard responds with an ACK and continues scanning. F7 PS/2 Set All Keys to Typematic, keyboard responds by sending an ACK, clearing its output buffer and setting the key type to Typematic. Scanning continues if scanning was enabled. This command may be sent while using any Scan Code Set but only has effect when Scan Code Set 3 is in use. F8 PS/2 Set All Keys to Make/Break, keyboard responds by sending an ACK, clearing its output buffer and setting the key type to Make/Break. Scanning continues if scanning was enabled. This command may be sent while using any Scan Code Set but only has effect when Scan Code Set 3 is in use. F9 PS/2 Set All Keys to Make, keyboard responds by sending an ACK, clearing its output buffer and setting the key type to Make. Scanning continues if scanning was enabled. This command may be sent while using any Scan Code Set but only has effect when Scan Code Set 3 is in use. FA PS/2 Set All Keys to Typematic Make/Break, keyboard responds by sending an ACK, clearing its output buffer and setting the key type to Typematic Make/Break. Scanning continues if scanning was enabled. This command may be sent while using any Scan Code Set but only has effect when Scan Code Set 3 is in use. FB PS/2 Set Key Type to Typematic, keyboard responds by sending an ACK, clearing its output buffer and then waiting for the key ID (make code from Scan Code Set 3). The specified key type is then set to typematic. This command may be sent while using any Scan Code Set but only has effect when Scan Code Set 3 is in use. FC PS/2 Set Key Type to Make/Break, keyboard responds by sending an ACK, clearing its output buffer and then waiting for the key ID (make code from Scan Code Set 3). The specified key type is then set to Make/Break. This command may be sent while using any Scan Code Set but only has effect when Scan Code Set 3 is in use. FD PS/2 Set Key Type to Make, keyboard responds by sending an ACK, clearing its output buffer and then waiting for the key ID (make code from Scan Code Set 3). The specified key type is then set to Make. This command may be sent while using any Scan Code Set but only has effect when Scan Code Set 3 is in use. FE Resend, should be sent when a transmission error is detected from the keyboard FF Reset, Keyboard sends ACK and waits for system to receive it then begins a program reset and Basic Assurance Test (BAT). Keyboard returns a one byte completion code then sets default Scan Code Set 2. ^Keyboard Responses to System (via 8042 port 60h) 00 Key Detection Error or Overrun Error for Scan Code Set 1, replaces last key in the keyboard buffer if the buffer is full. AA BAT Completion Code, keyboard sends this to indicate the keyboard test was successful. EE Echo Response, response to the Echo command. F0 Break Code Prefix in Scan Code Sets 2 and 3. FA Acknowledge, keyboard sends this whenever a valid command or data byte is received (except on Echo and Resend commands). FC BAT Failure Code, keyboard sends this to indicate the keyboard test failed and stops scanning until a response or reset is sent. FE Resend, keyboard request resend of data when data sent to it is invalid or arrives with invalid parity. FF Key Detection Error or Overrun Error for Scan Code Set 2 or 3, replaces last key in the keyboard buffer if the buffer is full. id Keyboard ID Response, keyboard sends a two byte ID after ACK'ing the Read ID command. The byte stream contains 83AB in LSB, MSB order. The keyboard then resumes scanning. - command F7 through FD are NOP's on the AT and are ACK'ed but not acted upon - see ~8042~ ~MAKE CODES~ ~BREAK CODES~ ~INT 16,3~ :parallel port:printer port ^Parallel Printer Port % Port 3BC printer data output (readable) │7│6│5│4│3│2│1│0│ ports 278, 378, 3BC │ │ │ │ │ │ │ └──── data bit 0, hardware pin 2 │ │ │ │ │ │ └───── data bit 1, hardware pin 3 │ │ │ │ │ └────── data bit 2, hardware pin 4 │ │ │ │ └─────── data bit 3, hardware pin 5 │ │ │ └──────── data bit 4, hardware pin 6 │ │ └───────── data bit 5, hardware pin 7 │ └────────── data bit 6, hardware pin 8 └─────────── data bit 7, hardware pin 9 % Port 3BD printer status register (Parallel Printer Port) │7│6│5│4│3│2│1│0│ ports 279, 379, 3BD │ │ │ │ │ │ │ └──── 1 = time-out │ │ │ │ │ └─┴───── unused │ │ │ │ └──────── 1 = error, pin 15 │ │ │ └───────── 1 = on-line, pin 13 │ │ └────────── 1 = out of paper, pin 12 │ └─────────── 0 = Acknowledge, pin 10 └──────────── 0 = busy, pin 11 % Port 3BE printer control register (Parallel Printer Port) │7│6│5│4│3│2│1│0│ ports 27A, 37A, 3BE │ │ │ │ │ │ │ └──── 1 = output data to printer, (pin 1) │ │ │ │ │ │ └───── 1 = auto line feed, (pin 14) │ │ │ │ │ └────── 0 = initialize printer, (pin 16) │ │ │ │ └─────── 1 = printer reads output, (pin 17) │ │ │ └──────── 0 = IRQ disable,1=IRQ enable for ACK └─┴─┴───────── unused :ports:port addresses:hardware ports ^PORTS Common I/O Port Addresses Port addresses are not always constant across PC, AT and PS/2 Unless marked, port addresses are relative to PC and XT only % 000-00F 8237 DMA controller 000 Channel 0 address register 001 Channel 0 word count 002 Channel 1 address register 003 Channel 1 word count 004 Channel 2 address register 005 Channel 2 word count 006 Channel 3 address register 007 Channel 3 word count 008 Status/command register 009 Request register 00A Mask register 00B Mode register 00C Clear MSB/LSB flip flop 00D Master clear temp register 00E Clear mask register 00F Multiple mask register % 010-01F 8237 DMA Controller (PS/2 model 60 & 80), reserved (AT) % 020-02F 8259A Master Programmable Interrupt Controller 020 8259 Command port (see ~8259~) 021 8259 Interrupt mask register (see 8259) % 030-03F 8259A Slave Programmable Interrupt Controller (AT,PS/2) % 040-05F 8253 or 8254 Programmable Interval Timer (PIT, see ~8253~) 040 8253 channel 0, counter divisor 041 8253 channel 1, RAM refresh counter 042 8253 channel 2, Cassette and speaker functions 043 8253 mode control (see ~8253~) 044 8254 PS/2 extended timer 047 8254 Channel 3 control byte % 060-067 8255 Programmable Peripheral Interface (PC,XT, PCjr) 060 8255 Port A keyboard input/output buffer (output PCjr) 061 8255 Port B output 062 8255 Port C input 063 8255 Command/Mode control register % 060-06F 8042 Keyboard Controller (AT,PS/2) 060 8042 Keyboard input/output buffer register 061 8042 system control port (for compatability with 8255) 064 8042 Keyboard command/status register 070 CMOS RAM/RTC, also NMI enable/disable (AT,PS/2, see ~RTC~) 071 CMOS RAM data (AT,PS/2) 080 Manufacturer systems checkpoint port (used during POST) % 080-090 DMA Page Registers 081 High order 4 bits of DMA channel 2 address 082 High order 4 bits of DMA channel 3 address 083 High order 4 bits of DMA channel 1 address % 090-097 POS/Programmable Option Select (PS/2) 090 Central arbitration control Port 091 Card selection feedback 092 System control and status register 094 System board enable/setup register 095 Reserved 096 Adapter enable/setup register 097 Reserved 0A0 NMI Mask Register (PC,XT) (write 80h to enable NMI, 00h disable) % 0A0-0BF Second 8259 Programmable Interrupt Controller (AT, PS/2) 0A0 Second 8259 Command port (see ~8259~) 0A1 Second 8259 Interrupt mask register (see 8259) 0C0 TI SN76496 Programmable Tone/Noise Generator (PCjr) % 0C0-0DF 8237 DMA controller 2 (AT) 0C2 DMA channel 3 selector (see ports 6 & 82) 0E0-0EF Reserved % 0F0-0FF Math coprocessor (AT, PS/2) % 0F0-0F5 PCjr Disk Controller 0F0 Disk Controller 0F2 Disk Controller control port 0F4 Disk Controller status register 0F5 Disk Controller data port % 0F8-0FF Reserved for future microprocessor extensions % 100-10F POS Programmable Option Select (PS/2) 100 POS Register 0, Adapter ID byte (LSB) 101 POS Register 1, Adapter ID byte (MSB) 102 POS Register 2, Option select data byte 1 Bit 0 is card enable (CDEN) 103 POS Register 3, Option select data byte 2 104 POS Register 4, Option select data byte 3 105 POS Register 5, Option select data byte 4 Bit 7 is (-CHCK) Bit 6 is reserved 106 POS Register 6, subaddress extension (LSB) 107 POS Register 7, subaddress extension (MSB) % 110-1EF System I/O channel % 170-17F Fixed disk 1 (AT) 170 disk 1 data 171 disk 1 error 172 disk 1 sector count 173 disk 1 sector number 174 disk 1 cylinder low 175 disk 1 cylinder high 176 disk 1 drive/head 177 disk 1 status % 1F0-1FF Fixed disk 0 (AT) 1F0 disk 0 data 1F1 disk 0 error 1F2 disk 0 sector count 1F3 disk 0 sector number 1F4 disk 0 cylinder low 1F5 disk 0 cylinder high 1F6 disk 0 drive/head 1F7 disk 0 status % 200-20F Game Adapter (see GAME PORT or ~JOYSTICK~) % 210-217 Expansion Card Ports (XT) 210 Write: latch expansion bus data read: verify expansion bus data 211 Write: clear wait,test latch Read: MSB of data address 212 Read: LSB of data address 213 Write: 0=enable, 1=/disable expansion unit 214-215 Receiver Card Ports 214 write: latch data, read: data 215 read: MSB of address, next read: LSB of address 21F Reserved % 220-26F Reserved for I/O channel % 270-27F Third parallel port (see ~PARALLEL PORT~) 278 data port 279 status port 27A control port % 280-2AF Reserved for I/O channel % 2A2-2A3 MSM58321RS clock % 2B0-2DF Alternate EGA, or 3270 PC video (XT, AT) 2E0 Alternate EGA/VGA 2E1 GPIB Adapter (AT) % 2E2-2E3 Data acquisition adapter (AT) % 2E8-2EF COM4 non PS/2 UART (Reserved by IBM) (see ~UART~) % 2F0-2F7 Reserved % 2F8-2FF COM2 Second Asynchronous Adapter (see UART) Primary Asynchronous Adapter for PCjr % 300-31F Prototype Experimentation Card (except PCjr) Periscope hardware debugger % 320-32F Hard Disk Controller (XT) 320 Read from/Write to controller 321 Read: Controller Status, Write: controller reset 322 Write: generate controller select pulse 323 Write: Pattern to DMA and interrupt mask register (see ports 0F,21,C2) 324 disk attention/status % 330-33F Reserved for XT/370 % 340-35F Reserved for I/O channel % 360-36F PC Network % 370-377 Floppy disk controller (except PCjr) 372 Diskette digital output 374 Diskette controller status 375 Diskette controller data 376 Diskette controller data 377 Diskette digital input % 378-37F Second Parallel Printer (see ~PARALLEL PORT~) First Parallel Printer (see PARALLEL PORT) 378 data port 379 status port 37A control port % 380-38F Secondary Binary Synchronous Data Link Control (SDLC) adapter 380 On board 8255 port A, internal/external sense 381 On board 8255 port B, external modem interface 382 On board 8255 port C, internal control and gating 383 On board 8255 mode register 384 On board 8253 channel square wave generator 385 On board 8253 channel 1 inactivity time-out 386 On board 8253 channel 2 inactivity time-out 387 On board 8253 mode register 388 On board 8273 read: status; Write: Command 389 On board 8273 write: parameter; read: response 38A On board 8273 transmit interrupt status 38B On board 8273 receiver interrupt status 38C On board 8273 data % 390-39F Cluster Adapter % 3A0-3AF Primary Binary Synchronous Data Link Control (SDLC) adapter 3A0 On board 8255 port A, internal/external sense 3A1 On board 8255 port B, external modem interface 3A2 On board 8255 port C, internal control and gating 3A3 On board 8255 mode register 3A4 On board 8253 counter 0 unused 3A5 On board 8253 counter 1 inactivity time-outs 3A6 On board 8253 counter 2 inactivity time-outs 3A7 On board 8253 mode register 3A8 On board 8251 data 3A9 On board 8251 command/mode/status register % 3B0-3BF Monochrome Display Adapter (write only, see ~6845~) 3B0 port address decodes to 3B4 3B1 port address decodes to 3B5 3B2 port address decodes to 3B4 3B3 port address decodes to 3B5 3B4 6845 index register, selects which register [0-11h] is to be accessed through port 3B5 3B5 6845 data register [0-11h] selected by port 3B4, registers 0C-0F may be read. If a read occurs without the adapter installed, FFh is returned. (see 6845) 3B6 port address decodes to 3B4 3B7 port address decodes to 3B5 3B8 6845 Mode control register 3B9 reserved for color select register on color adapter 3BA status register (read only) 3BB reserved for light pen strobe reset % 3BC-3BF Primary Parallel Printer Adapter (see ~PARALLEL PORT~) 3BC parallel 1, data port 3BD parallel 1, status port 3BE parallel 1, control port % 3C0-3CF EGA/VGA 3C0 VGA attribute and sequencer register 3C1 Other video attributes 3C2 EGA, VGA, CGA input status 0 3C3 Video subsystem enable 3C4 CGA, EGA, VGA sequencer index 3C5 CGA, EGA, VGA sequencer 3C6 VGA video DAC PEL mask 3C7 VGA video DAC state 3C8 VGA video DAC PEL address 3C9 VGA video DAC 3CA VGA graphics 2 position 3CC VGA graphics 1 position 3CD VGA feature control 3CE VGA graphics index 3CF Other VGA graphics % 3D0-3DF Color Graphics Monitor Adapter (ports 3D0-3DB are write only, see 6845) 3D0 port address decodes to 3D4 3D1 port address decodes to 3D5 3D2 port address decodes to 3D4 3D3 port address decodes to 3D5 3D4 6845 index register, selects which register [0-11h] is to be accessed through port 3D5 3D5 6845 data register [0-11h] selected by port 3D4, registers 0C-0F may be read. If a read occurs without the adapter installed, FFh is returned. (see ~6845~) 3D6 port address decodes to 3D4 3D7 port address decodes to 3D5 3D8 6845 Mode control register (CGA, EGA, VGA, except PCjr) 3D9 color select palette register (CGA, EGA, VGA, see 6845) 3DA status register (read only, see 6845, PCjr VGA access) 3DB Clear light pen latch (any write) 3DC Preset Light pen latch 3DF CRT/CPU page register (PCjr only) % 3E8-3EF COM3 non PS/2 UART (Reserved by IBM) (see ~UART~) % 3F0-3F7 Floppy disk controller (except PCjr) 3F0 Diskette controller status A 3F1 Diskette controller status B 3F2 controller control port 3F4 controller status register 3F5 data register (write 1-9 byte command, see ~INT 13~) 3F6 Diskette controller data 3F7 Diskette digital input % 3F8-3FF COM1 Primary Asynchronous Adapter (see ~UART~) 3220-3227 PS/2 COM3 (see UART) 3228-322F PS/2 COM4 (see UART) 4220-4227 PS/2 COM5 (see UART) 4228-422F PS/2 COM6 (see UART) 5220-5227 PS/2 COM7 (see UART) 5228-522F PS/2 COM8 (see UART) - many cards designed for the ISA ~BUS~ only uses the lower 10 bits of the port address but some ISA adapters use addresses beyond 3FF. Any address that matches in the lower 10 bits will decode to the same card. It is up to the adapters to resolve or ignore the high bits of the port addresses. An example would be the Cluster adapter that has a port address of 390h. The second cluster adapter has a port address of 790h which resolves to the same port address with the cards determining which one actually gets the data. :diagnostic codes:POST errors ^DIAGS IBM PC Diagnostic Error Codes % Code Description (Diagnostic Error Codes) 1x undetermined problem errors 2x power supply errors 61 battery error (PS/2) 62 configuration changed but no adaptors changed or CRC error 63 memory size during POST does not match ~CMOS~ RAM 65 card Id's in CMOS do not match system % 1xx System Board Errors 101 system board failed 102 BIOS ROM checksum error (PC, XT), Timer (AT) 103 BASIC ROM checksum error (PC, XT), Timer interrupt (AT) 104 interrupt controller (PC, XT), Protected mode (AT) 105 timer (PC,XT), Last ~8042~ command not accepted (AT) 106 converting logic test failure 107 adapter card or math coprocessor (NMI) 108 timer bus test 109 DMA test error 110 system board memory error (PS/2) 111 adapter memory 112 system unit adapter failure 114 system unit and adapter card unit failure (PS/1) 121 unexpected hardware interrupt 131 cassette wrap test failed 151 real-time clock, CMOS RAM or battery 152 real-time clock 161 system options error, battery failure 162 CMOS RAM configuration error 163 CMOS time and date not set 164 system memory configuration is incorrect 165 adapter added/removed 199 user indicated configuration not correct % 2xx RAM Errors 201 memory test error 202 memory address error (Line error 0 - 15) 203 memory address error (Line error 16 - 23) 216 motherboard memory % 3xx Keyboard Errors 301 keyboard did not respond to software reset or a stuck (number preceding 301 is scan code for stuck key) 302 user indicated keyboard error or AT system unit is locked 303 keyboard or system board error 304 keyboard or system board error; CMOS does not match system 341 replace keyboard 342 replace keyboard interface cable 343 replace enhancement card or cable 365 keyboard (replace keyboard) 366 interface cable (replace cable) 367 enhancement card or cable (replace) % 4xx Monochrome Monitor Errors 401 monochrome memory test, horizontal sync frequency test, or video test failed 408 user indicated display attributes failure 416 user indicated character set failure 424 user indicated 80x25 mode failure 432 parallel port test failed (monochrome adapter) % 5xx Color Monitor Errors 501 CGA memory test failed, horizontal sync frequency test, or video test failed 508 user indicated display attribute failure 516 user indicated character set failure 524 user indicated 80x25 mode failure 532 user indicated 40x25 mode failure 540 user indicated 320x200 graphics mode failure 548 user indicated 640x200 graphics mode failure 556 light pen test 564 user indicated screen paging test % 6xx Diskette Drive/Adapter Errors 601 diskette power on diagnostics test failed 602 diskette test failed (boot record not valid) 603 diskette size error 606 diskette verify function failed 607 write protected diskette 608 bad command diskette status returned 610 diskette initialization failed 611 time-out - diskette status returned 612 bad NEC ~FDC~ - diskette status returned 613 bad DMA - diskette status returned 614 DMA boundary error 621 bad seek - diskette status returned 622 bad CRC - diskette status returned 623 record not found - diskette status returned 624 bad address mark - diskette status returned 625 bad NEC seek - diskette status returned 626 diskette data compare error 627 diskette change line error 628 diskette removed % 7xx 8087 Math Coprocessor 701 coprocessor test failure % 9xx Parallel Printer Adapter Errors 901 parallel printer adapter test failed % 10xx Alternate Parallel Printer Adapter 1001 alternate printer adapter test failure % 11xx Asynchronous Communications Adapter Errors 1101 asynchronous communications adapter test failed 1110 modem status register not clear 1111 ring-indicate 1112 trailing edge ring-indicate 1113 receive and delta receive line signal detect 1114 receive line signal detect 1115 delta receive line signal detect 1116 line control register: all bits cannot be set 1117 line control register: all bits cannot be reset 1118 transmit holding and/or shift register stuck on 1119 data ready stuck on 1120 interrupt enable register: all bits cannot be set 1121 interrupt enable register: all bits cannot be reset 1122 interrupt pending stuck on 1123 interrupt ID register stuck on 1124 modem control register: all bits cannot be set 1125 modem control register: all bits cannot be reset 1126 modem status register: all bits cannot be set 1127 modem status register: all bits cannot be reset 1128 interrupt ID 1129 cannot force overrun error 1130 no modem status interrupt 1131 invalid interrupt pending 1132 no data ready 1133 no data available interrupt 1134 no transmit holding interrupt 1135 no interrupts 1136 no received line status interrupt 1137 no receive data available 1138 transmit holding register not empty 1139 no modem status interrupt 1140 transmit holding register not empty 1141 no interrupts 1142 no IRQ4 interrupt 1143 no IRQ3 interrupt 1144 no data transferred 1145 maximum baud rate 1146 minimum baud rate 1148 time-out error 1149 invalid data returned 1150 modem status register error 1151 no DSR and delta DSR 1152 no DSR 1153 no delta DSR 1154 modem status register not clear 1155 no CTS and delta CTS 1156 no CTS 1157 no delta CTS % 12xx Alternate Asynchronous Communications Adapter 1200-1257 same as 1100-1157 % 13xx Game Control Adapter Errors 1301 game control adapter test failed 1302 joystick test failed 1380 audio card and joystick (PS/1) % 14xx Printer Errors 1401 printer test failed 1404 matrix printer failed % 15xx SDLC Communications Adapter Errors 1501 adapter test failure 1510 8255 port b failure 1511 8255 port a failure 1512 8255 port c failure 1513 8253 timer 1 did not reach terminal count 1514 8253 timer 1 stuck on 1515 8253 timer 0 did not reach terminal count 1516 8253 timer 0 stuck on 1517 8253 timer 2 did not reach terminal count 1518 8253 timer 2 stuck on 1519 8273 port b error 1520 8273 port a error 1521 8273 command/read time-out 1522 interrupt level 4 failure 1523 ring Indicate stuck on 1524 receive clock stuck on 1525 transmit clock stuck on 1526 test indicate stuck on 1527 ring indicate not on 1528 receive clock not on 1529 transmit clock not on 1530 test indicate not on 1531 DSR not on 1532 CD not on 1533 CTS not on 1534 DSR stuck on 1535 CD stuck on 1536 CTS stuck on 1537 level 3 interrupt failure 1538 receive interrupt results error 1539 wrap data compare error 1540 DMA channel 1 error 1541 DMA channel 1 error 1542 error in 8273 error checking or status reporting 1547 stray interrupt level 4 1548 stray interrupt level 3 1549 interrupt presentation sequence time-out % 16xx Display Emulation Errors (327x, 5520, 525x) % 17xx Fixed Disk Errors 1701 post error 1702 adapter error 1703 drive error (seek) 1704 adapter or drive error 1705 no record found 1706 write fault error 1707 track 0 error 1708 head select error 1709 defective error check 1710 read buffer overrun 1711 bad address mark 1712 undetermined error 1713 data compare error 1714 drive not ready 1780 disk 0 failure 1781 disk 1 failure 1782 disk controller failure 1790 fixed disk 0 error 1791 fixed disk 1 error % 18xx I/O Expansion Unit Errors 1801 I/O expansion unit POST error 1810 enable/disable failure 1811 extender card wrap test failed (disabled) 1812 high order address lines failure (disabled) 1813 wait state failure (disabled) 1814 enable/disable could not be set on 1815 wait state failure (enabled) 1816 extender card wrap test failed (enabled) 1817 high order address lines failure (enabled) 1818 disable not functioning 1819 wait request switch not set correctly 1820 receiver card wrap test failure 1821 receiver high order address lines failure % 19xx 3270 PC Attachment Card Errors % 20xx Bisync Communications Adapter Errors 2010 8255 port a failure 2011 8255 port b failure 2012 8255 port c failure 2013 8253 timer 1 did not reach terminal count 2014 8253 timer 1 stuck on 2016 8253 timer 2 didn't reach terminal count or timer 2 stuck on 2017 8251 DSR failed to come on 2018 8251 CTS not sensed 2019 8251 DSR stuck on 2020 8251 CTS stuck on 2021 8251 hardware reset failed 2022 8251 software reset failed 2023 8251 software error reset failed 2024 8251 transmit ready did not come on 2025 8251 receive ready did not come on 2026 8251 could not force "overrun" error status 2027 interrupt failure, no timer interrupt 2028 transmit interrupt, card or planar failure 2029 transmit interrupt, card failure 2030 receive interrupt, card or planar failure 2031 receive interrupt, card failure 2033 ring indicate stuck on 2034 receive clock stuck on 2035 transmit clock stuck on 2036 test indicate stuck on 2037 ring indicate stuck on 2038 receive clock not on 2039 transmit clock not on 2040 test indicate not on 2041 DSR not on 2042 CD not on 2043 CTS not on 2044 DSR stuck on 2045 CD stuck on 2046 CTS stuck on 2047 unexpected transmit interrupt 2048 unexpected receive interrupt 2049 transmit data did not equal receive data 2050 8251 detected overrun error 2051 lost DSR during data wrap 2052 receive time-out during data wrap % 21xx Alternate Bisync Communications Adapter Errors 2100-2152 same as 2000-2052 % 22xx Cluster Adapter Errors % 24xx EGA Errors 2401 adapter test failure 2408 user-indicated display attributes 2416 user-indicated character set 2424 user-indicated 80x25 mode 2432 user-indicated 40x25 mode 2440 user-indicated 320x200 graphics mode 2448 user-indicated 640x200 graphics mode 2456 light pen test 2464 user-indicated screen paging test % 2501 EGA Display Error % 28xx 3278/79 Emulator Adapter (PC, XT) % 29xx Color Matrix Printer Errors % 30xx Local Area Network Adapter % 31xx Alternate Local Area Network Adapter % 33xx Compact Printer Errors % 36xx IEEE 488 Adapter % 37xx Reserved for Future Use % 38xx Data Acquisition Adapter % 39xx PGA Display and/or Adapter % 48xx Internal Modem % 49xx Alternate Internal Modem % 71xx Voice Communications Adapter % 73xx 3.5 Inch Diskette Drive 7301 diskette drive/adapter test failure 7306 diskette change line error 7307 write-protected diskette 7308 bad command 7310 track zero error 7311 timeout 7312 bad NEC7313 bad DMA 7314 DMA boundary error 7315 bad index 7316 speed error 7321 bad seek 7322 bad CRC 7323 record not found 7324 bad address mark 7325 bad NEC seek % 86xx PS/1 Mouse Error - all error codes for the diagnostic and advanced diagnostic packages for the PC, XT and AT are represented with the device number followed by two digits other than 00. The device number plus 00 represents successful completion of the test. :resistor values ^Resistor Color Code Chart % Color Digit Multiplier Black 0 1 Brown 1 10 Red 2 100 Gold ± 5% tolerance Orange 3 1,000 Silver ±10% tolerance Yellow 4 10,000 Green 5 100,000 Blue 6 1,000,000 Violet 7 10,000,000 Gray 8 100,000,000 White 9 1,000,000,000 % ╒═████░██▒██▓██░████═╕ % ┴ ┴ │ │ │ │ │ │ │ └────────── tolerance (gold or silver) │ │ └──────────── Ohm value multiplier └──┴────────────── first 2 digits of Ohm value :RS232 pins:serial ports ^RS232 Communication Configuration % IBM PC IBM AT % Pin 25-Pin Signal (DTE) Pin 9-Pin Signal (DTE) 1 Chassis Ground (GND) 1 Carrier Detect (CD) 2 Transmit Data (TD) 2 Receive Data (RD) 3 Receive Data (RD) 3 Transmit Data (TD) 4 Request to Send (RTS) 4 Data Terminal Ready (DTR) 5 Clear to Send (CTS) 5 Signal Ground (SG) 6 Data Set Ready (DSR) 6 Data Set Ready (DSR) 7 Signal Ground (SG) 7 Request to Send (RTS) 8 Carrier Detect (CD) 8 Clear to Send (CTS) 9-19 (not used) 9 Ring Indicator (RI) 20 Data Terminal Ready (DTR) 22 Ring Indicator (RI) There are two general cable configurations used with the RS-232C Communications Standard: Data Terminal Equipment (DTE): IBM PC's, printers, plotters, etc Data Communication Equipment (DCE): modems, multiplexors, etc DCE to DTE requires all lines run straight through DTE to DTE usually requires swapping of the following lines RD and TD RD and TD RTS and CTS or RTS,CTS and DCD DTR and DSR DCD and RTS,CTS % Signal Functions GND Ground protective safety ground TD Transmit Data DTE output data RD Receive Data DTE input data RTS Request To Send DTE output, DTE would like to transmit CTS Clear To Send DTE input, DCE is ready to transmit DSR Data Set Ready DTE input, DCE is ready to communicate SG Signal Ground provides a Zero reference voltage DCD Data Carrier Detect DTE input, data link established, also known as Receive Line Signal Detect (RLSD) DTR Data Terminal Ready DTE output, device ready RI Ring Indicator DTE input, announces incoming call - RTS/CTS is used for half duplex line turn around - in half duplex DCD is asserted only by the receiving device - full duplex modems tie CTS & DCD together (no CTS/RTS handshaking) - most modems require DTR to be present to respond to commands - maximum voltages are between -15 volts and +15 volts - binary outputs are between +5 to +15 volts and -5 to -15 volts - binary inputs are between +3 to +15 volts and -3 to -15 volts - input voltages between -3 to +3 are undefined while output voltages between -5 and +5 are undefined - positive voltages indicate ON or SPACE, negative voltages indicate OFF or MARK