home *** CD-ROM | disk | FTP | other *** search
- >a
- >b
- +40 bit Data Alu Accumulator Register
- >a0
- >a1
- >b0
- >b1
- >x0
- >x1
- >y0
- >y1
- +16 bit Data Alu Register
- >a2
- >b2
- +8 bit Data Alu Register
- >x
- >y
- +32 bit Data Alu Register
- >r0
- >r1
- >r2
- >r3
- +16 bit Address Alu Address Register
- >n0
- >n1
- >n2
- >n3
- +16 bit Address Alu Offset Register
- >m0
- >m1
- >m2
- >m3
- +16 bit Address Alu Modulo Register
- >bcr
- +Port A Bus Control Register. X:$FFDE.
- + {R B}
- + {H S} * * * *|{ X mem }|{ P mem }
- >ipr
- +Interrupt Priority Register. X:$FFDF.
- + {S S S S} {I I I I I I}
- + {T T 0 0 1 1 H H} {B B B A A A}
- + {L L L L L L L L} {L L L L L L}
- + {1 0 1 0 1 0 1 0} * * {2 1 0 2 1 0}
- >jump
- +Internal flag that indicates if a branch or jump is actually executed
- >la
- +16 bit Program Controller Loop Address Register
- >lc
- +16 bit Program Controller Loop Count Register
- >omr
- +8 bit Program Controller Operating Mode Register
- + {C S S E M M M}
- + {D D R A X C B A}
- >pc
- +OnCE Program Address Bus Decode Register - also called program counter
- >ssh
- +Program Controller System Stack High
- >ssl
- +Program Controller System Stack Low
- >sp
- +Program Controller Stack Pointer Register
- + {U S P P P P}
- + * * {F E 3 2 1 0}
- >pbc
- +Port B Control Register. X:$FFC0.
- + {B}
- + {C}
- + * * * * * * * {0}
- >pbddr
- +Port B Data Direction Register. X:$FFC2.
- >Port B Data Register. X:$FFE2.
- >sr
- +Program Controller Status Register
- + { MR }|{ CCR }
- + {L F} {S S I I}
- + {F V 1 0 1 0 1 0 S L E U N Z V C}
- >pcc
- +Port C Control Register. X:$FFC1.
- >pcddr
- +Port C Data Direction Register. X:$FFC3.
- >Port C Data Register. X:$FFE3.
- >hcr
- +Read-Write Host Control Register. X:$FFC4
- + {H H H}
- + {H H C T R}
- + {F F I I I}
- + * * * {3 2 E E E}
- >hsr
- +Read-Only Host Status Register. X:$FFE4.
- + {H H}
- + {D} {H H H T R}
- + {M} {F F C D D}
- + {A} * * {1 0 P E F}
- >hrx
- +Read-Only Host Receive Data Register. X:$FFE5.
- >htx
- +Write-Only Host Transmit Data Register. X:$FFE5
- >icr
- +Read-Write Interrupt Control Register. Host Processor Address 0.
- + I T R
- + N H H H H R R
- + I M M F F E E
- + T 1 0 1 0 * Q Q
- >cvr
- +Read-Write Command Vector Register. Host Processor Address 1.
- + H
- + C * * { HV }
- >isr
- +Read-Only Interrupt Status Register. Host Processor Address 2.
- + H T T R
- + R D H H R X X
- + E M F F D D D
- + Q A * 3 2 Y E F
- >ivr
- +Read-Write Interrupt Vector Register. Host Processor Address 3.
- >rxh
- +Read-Only Receive Byte Register (High Byte). Host Processor Address 6.
- >rxl
- +Read-Only Receive Byte Register (Low Byte). Host Processor Address 7.
- >txh
- +Write-Only Transmit Byte Register (High Byte). Host Processor Address 6.
- >txl
- +Write-Only Transmit Byte Register (Low Byte). Host Processor Address 7.
- >tcr
- +Read-Write Timer Control Register. X:$FFEC.
- + I T T T C O
- + T N O O O I I E D D D D D D D D
- + E V 2 1 0 E E S C C C C C C C C
- >tctr
- +Read-Write Timer Count Register. X:$FFED.
- >tpr
- +Read-Write Timer Preload Register. X:$FFEF.
- >tcpr
- +Read-Write Timer Compare Register. X:$FFEE.
- >cra0
- >cra1
- +Read-Write Control Register A. SSI0 - X:$FFD0. SSI1 - X:$FFD8.
- + P W W D D D D D P P P P P P P P
- + S L L C C C C C M M M M M M M M
- + R 1 0 4 3 2 1 0 7 6 5 4 3 2 1 0
- >crb1
- >crb0
- +Read-Write Control Register B. SSI0 - X:$FFD1. SSI1 - X:$FFD9.
- + S S S A
- + R T M S F F H C C F / F O O
- + I I R T O Y S S F K K S M L F F
- + E E E E D N I L D P D D U G 1 0
- >rml0
- >rml1
- +Read-Write Receive Slot Mask Register Low. SSI0 - X:$FFF2. SSI1 - X:$FFFA.
- + R R R R R R R R R R R R R R R R
- + S S S S S S S S S S S S S S S S
- + 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0
- + 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
- >rmh0
- >rmh1
- +Read-Write Receive Slot Mask Register High. SSI0 - X:$FFF3. SSI1 - X:$FFFB.
- + R R R R R R R R R R R R R R R R
- + S S S S S S S S S S S S S S S S
- + 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1
- + 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6
- >tml0
- >tml1
- +Read-Write Transmit Slot Mask Register Low. SSI0 - X:$FFF4. SSI1 - X:$FFFC.
- + T T T T T T T T T T T T T T T T
- + S S S S S S S S S S S S S S S S
- + 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0
- + 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
- >tmh0
- >tmh1
- +Read-Write Transmit Slot Mask Register High. SSI0 - X:$FFF5. SSI1 - X:$FFFD.
- + T T T T T T T T T T T T T T T T
- + S S S S S S S S S S S S S S S S
- + 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1
- + 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6
- >rx0
- >rx1
- +Read-Only Serial Receive Register. SSI0 - X:$FFF1. SSI1 - X:$FFF9.
- >tx0
- >tx1
- +Write-Only Serial Transmit Register. SSI0 - X:$FFF1. SSI1 - X:$FFF9.
- >ssr0
- >ssr1
- +Read-Only Status Register. SSI0 - X:$FFF0. SSI1 - X:$FFF8.
- + R T R T R T I I
- + D D O U F F F F
- + F E E E S S 1 0
- >tsr0
- >tsr1
- +Write-Only Time Slot Register. SSI0 - X:$FFF0. SSI1 - X:$FFF8.