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PCI6421 Datasheet(PDF) 125 Page - Texas Instruments

Part # PCI6421
Description  DUAL/SINGLE SOCKET CARDBUS AND ULTRAMEDIA CONTROLLER
PDF  204 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCI6421 Datasheet(HTML) 125 Page - Texas Instruments

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5−13
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:
ExCA I/O window 0 start-address low-byte
Offset:
CardBus Socket Address + 808h:
Card A ExCA Offset 08h
Card B ExCA Offset 48h
Register:
ExCA I/O window 1 start-address low-byte
Offset:
CardBus Socket Address + 80Ch:
Card A ExCA Offset 0Ch
Card B ExCA Offset 4Ch
Type:
Read/Write
Default:
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:
ExCA I/O window 0 start-address high-byte
Offset:
CardBus Socket Address + 809h:
Card A ExCA Offset 09h
Card B ExCA Offset 49h
Register:
ExCA I/O window 1 start-address high-byte
Offset:
CardBus Socket Address + 80Dh:
Card A ExCA Offset 0Dh
Card B ExCA Offset 4Dh
Type:
Read/Write
Default:
00h



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