Fixed I/O Map - Intel BLKD946GZISSL - CONROE LGA775 1066 800FSB DR2 A/V Lan SATA mATX 10Pack ACTIVE Motherboard Technical Product Specification

Intel Desktop Board D946GZIS Technical Product Specification
2.3

Fixed I/O Map

Table 11. I/O Map
Address (hex)
0000 - 00FF
01F0 - 01F7
(Note 1)
0228 - 022F
(Note 1)
0278 - 027F
(Note 1)
02E8 - 02EF
(Note 1)
02F8 - 02FF
0378 - 037F
03B0 - 03BB
03C0 - 03DF
03E8 - 03EF
03F0 - 03F5
03F4 - 03F7
03F8 - 03FF
04D0 - 04D1
LPTn + 400
(Note 2)
0CF8 - 0CFB
(Note 3)
0CF9
0CFC - 0CFF
FFA0 - FFA7
Notes:
1. Default, but can be changed to another address range
2. Dword access only
3. Byte access only
NOTE
Some additional I/O addresses are not available due to ICH7 address aliasing. The
ICH7 data sheet provides more information on address aliasing.
For information about
Obtaining the ICH7 data sheet
46
Size Description
256 bytes Used by the Desktop Board D946GZIS. Refer to the ICH7
data sheet for dynamic addressing information.
8 bytes Primary Parallel ATE IDE channel command block
8 bytes LPT3
8 bytes LPT2
8 bytes COM4
8 bytes COM2
8 bytes LPT1
12 bytes Intel 82946GZ GMCH
32 bytes Intel 82946GZ GMCH
8 bytes COM3
6 bytes Diskette channel
4 bytes Primary Parallel ATA IDE channel control block
8 bytes COM1
2 bytes Edge/level triggered PIC
8 bytes ECP port, LPTn base address + 400h
4 bytes PCI configuration address register
1 byte Reset control register
4 bytes PCI configuration data register
8 bytes Primary Parallel ATA IDE bus master registers
Refer to
Section 1.2 on page 15