System I/O Address Map - Epson ActionDesk 4000 User Manual

System I/O Address Map

System I/O address map
Hex address
000-01F
020-03F
022-024
040-05F
060-06F
070-07F
(CMOS)
080-09F
0A0-0BF
0B4, 0BB
0BC
0C0-0DF
0 F 0
0F1
0 F 8 - 0 F F
1F0-1F8
200-207
278-27F
2B0-2DF
2E1
2E2, 2E3
2 F 8 - 2 F F
300-31F
360-363
368-36B
A-16 Specifications
Assigned device
DMA controller 1, 8237
Interrupt controller 1, 8259, master
Chip set configuration register
timer, 8254
Keyboard controller, 8042
Real-time clock NMI (non-maskable interrupt) mask
DMA page register, 74LS612
Interrupt controller 2, 8259A
AD12 control register
AD12 control register
DMA controller 2, 8237
Clear math coprocessor busy
Reset math coprocessor
Math coprocessor
Hard disk
Game I/O
Parallel printer port 2
Alternate enhanced graphics adapter
GPIB (adapter 0)
Data acquisition (adapter 0)
Serial port 2
Prototype card
PC network (low address)
PC network (high address)