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ports.txt
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1985-07-03
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1KB
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37 lines
Any port in a storm . . . Courtesy of Dr. Bob
Port# (in hex) Function
40-43 control of programmable timer
60 passing scan codes from the keyboard
61 controls speaker (bits 0 and 1), cassette motor,
and hardware timer
3b0 - ? Mono display
3d0 - ? Color display
3f0 - ? Diskette controller (actual data to and from diskette
goes through 3f5)
3f8 - 3ff com1: (modem attachment on PCjr) _
3fb line control register |
3fc modem control register |___com1:
3fd line status register |
3fe modem status register _|
2f8 - 2ff com2: (RS232 on PCjr)
_
2fb line control register |
2fc modem control register |___com2:
2fd line status register |
2fe modem status register _|
200 - 207 game port?