Compaq EXS Series - Manual (Page 70)

6-4 Specifications
ICH Fixed I/O Registers cont
Port Register Name
CF9h Reset Control Register
A0h Slave PIC ICW1 Init. Cmd Word 1 Register
Slave PIC OCW2 Op Ctrl Word 2 Register
Slave PIC OCW3 Op Ctrl Word 3 Register
A1 Slave PIC ICW2 Init. Cmd Word 2 Register
Slave PIC ICW3 Init. Cmd Word 3 Register
Slave PIC ICW4 Init. Cmd Word 4 Register
Slave PIC OCW1 Op Ctrl Word 1 Register
A4h-A5h, A8h-A8h,
ACh-ADh, B0h-B1h,
B4h-B5h, B8h-B9h,
BCh-BDh Aliased at A0h-A1h
B2h Advanced Power Management Control Port Register
B3h Advanced Power Management Status Port Register
C0h, C4h, C8h, CCh Channel 4, 5, 6, 7 DMA Base and Current Address Register
C1h Aliased at C0h
C5h Aliased at C4h
C9h Aliased at C8h
CDh Aliased at CCh
C2h, C6h, CAh, CEh Channel 4, 5, 6, 7 DMA Base and Current Count Register
C3h Aliased at C2h
C7h Aliased at C6h
CBh Aliased at CAh
CFh Aliased at Ceh
D0h Channel 4-7 DMA Command Register
Channel 4-7 DMA Status Register
D1h Aliased at D0h
D4h Channel 4-7 DMA Write Single Mask Register
D5h Aliased at D4h
D6h Channel 4-7 DMA Channel Mode Register
D7h Aliased at D6h
D8h Channel 4-7 DMA Clear Byte Pointer Register
D9h Aliased at D8h
DAh Channel 4-7 DMA Master Clear Register
DBh Aliased at DAh
DCh Channel 4-7 DMA Clear Mask Register
DEh Aliased at DCh
DEh Channel 4-7 DMA Write All Mask Register
DFh Aliased at DEh
F0h Coprocessor Error Register
170h-177h PIO Mode Command Block Offset for Secondary Drive
continued