Texas Instruments Dual/Single Socket CardBus and UntraMedia Controller PCI7621 User Manual
Page 142
5−14
5.11 ExCA I/O Windows 0 and 1 End-Address Low-Byte Registers
These registers contain the low byte of the 16-bit I/O window end address for I/O windows 0 and 1. The 8 bits of these
registers correspond to the lower 8 bits of the start address.
Bit
7
6
5
4
3
2
1
0
Name
ExCA I/O windows 0 and 1 end-address low-byte
Type
RW
RW
RW
RW
RW
RW
RW
RW
Default
0
0
0
0
0
0
0
0
Register:
ExCA I/O window 0 end-address low-byte
Offset:
CardBus Socket Address + 80Ah:
Card A ExCA Offset 0Ah
Card B ExCA Offset 4Ah
Register:
ExCA I/O window 1 end-address low-byte
Offset:
CardBus Socket Address + 80Eh:
Card A ExCA Offset 0Eh
Card B ExCA Offset 4Eh
Type:
Read/Write
Default: 00h
5.12 ExCA I/O Windows 0 and 1 End-Address High-Byte Registers
These registers contain the high byte of the 16-bit I/O window end address for I/O windows 0 and 1. The 8 bits of these
registers correspond to the upper 8 bits of the end address.
Bit
7
6
5
4
3
2
1
0
Name
ExCA I/O windows 0 and 1 end-address high-byte
Type
RW
RW
RW
RW
RW
RW
RW
RW
Default
0
0
0
0
0
0
0
0
Register:
ExCA I/O window 0 end-address high-byte
Offset:
CardBus Socket Address + 80Bh:
Card A ExCA Offset 0Bh
Card B ExCA Offset 4Bh
Register:
ExCA I/O window 1 end-address high-byte
Offset:
CardBus Socket Address + 80Fh:
Card A ExCA Offset 0Fh
Card B ExCA Offset 4Fh
Type:
Read/Write
Default:
00h