Epson ActionTower 3000 User Manual - Page 119
System Memory Map, System I/O Address Map, Hex address, Assigned device, 0C0 - 0DF
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System Memory Map Memory address range 000000h to 09FFFFh 0A0000h to 0BFFFFh 0C0000h to 0C7FFFh 0C8000h to 0DFFFFh O0E0000h to 0FFFFh 100000h to FDFFFFh FE0000h to FFFFFFh Usage 640KB base memory 128KB video memory 32KB video ROM BIOS 32KB external adapter ROM BIOS 128KB system ROM BIOS Extended memory 128KB of ROM remapped from 0E0000h to 0FFFFFh System I/O Address Map Hex address 000 - 01F 020 - 03F 022 - 024 034, 038B, 03V 040 - 05F 060 - 06F 070 - 07F 080 - 09F 0A0 - 0BF 0C0 - 0DF 0F0 0F1 0F8 - 0FF 1F0 - 1F8 200 - 207 278 - 27F 280 - 2DF Assigned device DMA controller 1,8237 Interrupt controller 1,8259 Chip set configuration registers AD12 chipset configuration registers Timer, 8254 Keyboard controller, 8042 NMI (non-maskable interrupt) DMA page register, 74LS612 Interrupt controller 2,8259A DMA controller 2,8237 Clear math coprocessor Reset math coprocessor Math coprocessor Hard disk Game I/O Parallel printer port 2 Alternate enhanced graphics adapter A-14 Specifications
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