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Intel Desktop Board D810EMO/MO810E Technical Product Specification
34
2.3 I/O Map
Table 12. I/O Map
Address (hex) Size Description
0000 – 000F 16 bytes DMA Controller
0020 – 0021 2 bytes Programmable Interrupt Control (PIC)
0040 – 0043 4 bytes System Timer
0060 1 byte Keyboard controller byte – reset IRQ
0061 1 byte System Speaker
0064 1 byte Keyboard controller, CMD/STAT byte
0070 – 0071 2 bytes System CMOS / Real Time Clock
0072 – 0073 2 bytes System CMOS
0080 – 008F 16 bytes DMA Controller
0092 1 byte Fast A20 and PIC
00A0 – 00A1 2 bytes PIC
00C0 – 00DF 32 bytes DMA
00F0 1 byte Numeric data processor
0170 – 0177 8 bytes Secondary IDE channel
01F0 – 01F7 8 bytes Primary IDE channel
02E8 – 02EF
1
8 bytes COM4/video (8514A)
02F8 – 02FF
1
8 bytes COM2
0376 1 byte Secondary IDE channel command port
0377, bits 6:0 7 bits Secondary IDE channel status port
03B0 – 03BB 12 bytes Intel 82810E – DC133 Graphics/Memory Controller Hub (GMCH)
03C0 – 03DF 32 byte Intel 82810E – Graphics/Memory Controller Hub (GMCH)
03E8 – 03EF 8 bytes COM3
03F6 1 byte Primary IDE channel command port
03F8 – 03FF 8 bytes COM1
04D0 – 04D1 2 bytes Edge/level triggered PIC
0CF8 – 0CFB
2
4 bytes PCI configuration address register
0CF9
3
1 byte Turbo and reset control register
0CFC – 0CFF 4 bytes PCI configuration data register
FFA0 – FFA7 8 bytes Primary bus master IDE registers
FFA8 – FFAF 8 bytes Secondary bus master IDE registers
continued