PCI1520GHK Datasheet, PDF (108/139 Pages) Texas Instruments – PC Card Controllers

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.
Bit
7
6
5
4
3
2
1
0
Name
ExCA I/O windows 0 and 1 start-address low-byte
Type
RW
RW
RW
RW
RW
RW
RW
RW
Default
0
0
0
0
0
0
0
0
Register:
Offset:
Register:
Offset:
Type:
Default:
ExCA I/O window 0 start-address low-byte
CardBus socket address + 808h; Card A ExCA offset 08h
Card B ExCA offset 48h
ExCA I/O window 1 start-address low-byte
CardBus socket address + 80Ch; Card A ExCA offset 0Ch
Card B ExCA offset 4Ch
Read/Write
00h
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.
Bit
7
6
5
4
3
2
1
0
Name
ExCA I/O windows 0 and 1 start-address high-byte
Type
RW
RW
RW
RW
RW
RW
RW
RW
Default
0
0
0
0
0
0
0
0
Register:
Offset:
Register:
Offset:
Type:
Default:
ExCA I/O window 0 start-address high-byte
CardBus socket address + 809h; Card A ExCA offset 09h
Card B ExCA offset 49h
ExCA I/O window 1 start-address high-byte
CardBus socket address + 80Dh; Card A ExCA offset 0Dh
Card B ExCA offset 4Dh
Read/write
00h
5−13