Epson ActionDesk 4000 User Manual - Page 131
System I/O Address Map, A-16 Specifications
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System I/O Address Map System I/O address map Hex address Assigned device 000-01F 020-03F DMA controller 1, 8237 Interrupt controller 1, 8259, master 022-024 Chip set configuration register 040-05F timer, 8254 060-06F Keyboard controller, 8042 070-07F (CMOS) Real-time clock NMI (non-maskable interrupt) mask 080-09F DMA page register, 74LS612 0A0-0BF Interrupt controller 2, 8259A 0B4, 0BB AD12 control register 0BC AD12 control register 0C0-0DF 0F0 DMA controller 2, 8237 Clear math coprocessor busy 0F1 Reset math coprocessor 0F8-0FF Math coprocessor 1F0-1F8 Hard disk 200-207 Game I/O 278-27F Parallel printer port 2 2B0-2DF 2E1 Alternate enhanced graphics adapter GPIB (adapter 0) 2E2, 2E3 Data acquisition (adapter 0) 2F8-2FF Serial port 2 300-31F Prototype card 360-363 PC network (low address) 368-36B PC network (high address) A-16 Specifications
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