
ExCA Compatibilty Registers (Function 0)
118
September 2005
SCPS110
5.9
ExCA I/O Windows 0 and 1 Start-Address Low-Byte Registers
These registers contain the low byte of the 16-bit I/O window start address for I/O windows 0 and 1. The 8 bits
of these registers correspond to the lower 8 bits of the start address.
Register:
ExCA I/O window 0 start-address low-byte
ExCA register offset:
CardBus Socket Address + 808h: Card A ExCA Offset 08h
Register:
ExCA I/O window 1 start-address low-byte
ExCA register offset:
CardBus Socket Address + 80Ch: Card A ExCA Offset 0Ch
Register type:
Read/Write
Default value:
00h
BIT NUMBER
7
6
5
4
3
2
1
0
RESET STATE
0
5.10 ExCA I/O Windows 0 and 1 Start-Address High-Byte Registers
These registers contain the high byte of the 16-bit I/O window start address for I/O windows 0 and 1. The 8
bits of these registers correspond to the upper 8 bits of the start address.
Register:
ExCA I/O window 0 start-address high-byte
ExCA register offset:
CardBus Socket Address + 809h: Card A ExCA Offset 09h
Register:
ExCA I/O window 1 start-address high-byte
ExCA register offset:
CardBus Socket Address + 80Dh: Card A ExCA Offset 0Dh
Register type:
Read/Write
Default value:
00h
BIT NUMBER
7
6
5
4
3
2
1
0
RESET STATE
0
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.
Register:
ExCA I/O window 0 end-address low-byte
ExCA register offset:
CardBus Socket Address + 80Ah: Card A ExCA Offset 0Ah
Register:
ExCA I/O window 1 end-address low-byte
ExCA register offset:
CardBus Socket Address + 80Eh: Card A ExCA Offset 0Eh
Register type:
Read/Write
Default value:
00h
BIT NUMBER
7
6
5
4
3
2
1
0
RESET STATE
0