Intel KD875PBZLKPAK10 Product Specification - Page 52

Fixed I/O Map

Page 52 highlights

Intel Desktop Board D875PBZ Technical Product Specification 2.4 Fixed I/O Map Table 14. I/O Map Address (hex) 0000 - 00FF Size 256 bytes 0170 - 0177 01F0 - 01F7 0228 - 022F (Note 1) 0278 - 027F (Note 1) 02E8 - 02EF (Note 1) 02F8 - 02FF (Note 1) 0374 - 0377 0378 - 037F 03B0 - 03BB 03C0 - 03DF 03E8 - 03EF 03F0 - 03F5 03F4 - 03F7 03F8 - 03FF 04D0 - 04D1 LPTn + 400 0CF8 - 0CFB (Note 2) 0CF9 (Note 3) 0CFC - 0CFF FFA0 - FFA7 FFA8 - FFAF 8 bytes 8 bytes 8 bytes 8 bytes 8 bytes 8 bytes 4 bytes 8 bytes 12 bytes 32 bytes 8 bytes 6 bytes 4 bytes 8 bytes 2 bytes 8 bytes 4 bytes 1 byte 4 bytes 8 bytes 8 bytes Description Used by the Desktop Board D875PBZ. Refer to the ICH5R data sheet for dynamic addressing information Secondary Parallel ATA IDE channel command block Primary Parallel ATA IDE channel command block LPT3 LPT2 COM4 COM2 Secondary Parallel ATA IDE channel control block LPT1 Intel 82875P MCH Intel 82875P MCH COM3 Diskette channel Primary Parallel ATA IDE channel control block COM1 Edge/level triggered PIC ECP port, LPTn base address + 400h PCI configuration address register Reset control register PCI configuration data register Primary Parallel ATA IDE bus master registers Secondary Parallel ATA IDE bus master registers Notes: 1. Default, but can be changed to another address range 2. Dword access only 3. Byte access only For information about ICH5-R addressing Refer to Section 1.2, page 16 52

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Intel Desktop Board D875PBZ Technical Product Specification
52
2.4 Fixed I/O Map
Table 14.
I/O Map
Address (hex)
Size
Description
0000 - 00FF
256 bytes
Used by the Desktop Board D875PBZ.
Refer to the ICH5-
R data sheet for dynamic addressing information
0170 - 0177
8 bytes
Secondary Parallel ATA IDE channel command block
01F0 - 01F7
8 bytes
Primary Parallel ATA IDE channel command block
0228 - 022F (Note 1)
8 bytes
LPT3
0278 - 027F (Note 1)
8 bytes
LPT2
02E8 - 02EF (Note 1)
8 bytes
COM4
02F8 - 02FF (Note 1)
8 bytes
COM2
0374
0377
4 bytes
Secondary Parallel ATA IDE channel control block
0378 - 037F
8 bytes
LPT1
03B0 - 03BB
12 bytes
Intel 82875P MCH
03C0 - 03DF
32 bytes
Intel 82875P MCH
03E8 - 03EF
8 bytes
COM3
03F0 - 03F5
6 bytes
Diskette channel
03F4
03F7
4 bytes
Primary Parallel ATA IDE channel control block
03F8 - 03FF
8 bytes
COM1
04D0 - 04D1
2 bytes
Edge/level triggered PIC
LPTn + 400
8 bytes
ECP port, LPTn base address + 400h
0CF8 - 0CFB (Note 2)
4 bytes
PCI configuration address register
0CF9 (Note 3)
1 byte
Reset control register
0CFC - 0CFF
4 bytes
PCI configuration data register
FFA0 - FFA7
8 bytes
Primary Parallel ATA IDE bus master registers
FFA8 - FFAF
8 bytes
Secondary Parallel ATA IDE bus master registers
Notes:
1.
Default, but can be changed to another address range
2.
Dword access only
3.
Byte access only
For information about
Refer to
ICH5-R addressing
Section 1.2, page 16