Texas Instruments Dual/Single Socket CardBus and UntraMedia Controller PCI7621 User Manual
Page 143
5−15
5.13 ExCA Memory Windows 0−4 Start-Address Low-Byte Registers
These registers contain the low byte of the 16-bit memory window start address for memory windows 0, 1, 2, 3, and 4.
The 8 bits of these registers correspond to bits A19−A12 of the start address.
Bit
7
6
5
4
3
2
1
0
Name
ExCA memory windows 0−4 start-address low-byte
Type
RW
RW
RW
RW
RW
RW
RW
RW
Default
0
0
0
0
0
0
0
0
Register:
ExCA memory window 0 start-address low-byte
Offset:
CardBus Socket Address + 810h:
Card A ExCA Offset 10h
Card B ExCA Offset 50h
Register:
ExCA memory window 1 start-address low-byte
Offset:
CardBus Socket Address + 818h:
Card A ExCA Offset 18h
Card B ExCA Offset 58h
Register:
ExCA memory window 2 start-address low-byte
Offset:
CardBus Socket Address + 820h:
Card A ExCA Offset 20h
Card B ExCA Offset 60h
Register:
ExCA memory window 3 start-address low-byte
Offset:
CardBus Socket Address + 828h:
Card A ExCA Offset 28h
Card B ExCA Offset 68h
Register:
ExCA memory window 4 start-address low-byte
Offset:
CardBus Socket Address + 830h:
Card A ExCA Offset 30h
Card B ExCA Offset 70h
Type:
Read/Write
Default: 00h