PCI1520 Datasheet, PDF (110/138 Pages) Texas Instruments – PC CARD CONTROLLERS

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 end 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:
Offset:
Register:
Offset:
Type:
Default:
ExCA I/O window 0 end-address low-byte
CardBus socket address + 80Ah; Card A ExCA offset 0Ah
Card B ExCA offset 4Ah
ExCA I/O window 1 end-address low-byte
CardBus socket address + 80Eh; Card A ExCA offset 0Eh
Card B ExCA offset 4Eh
Read/Write
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:
Offset:
Register:
Offset:
Type:
Default:
ExCA I/O window 0 end-address high-byte
CardBus socket address + 80Bh; Card A ExCA offset 0Bh
Card B ExCA offset 4Bh
ExCA I/O window 1 end-address high-byte
CardBus socket address + 80Fh; Card A ExCA offset 0Fh
Card B ExCA offset 4Fh
Read/write
00h
5−14