Texas Instruments Dual/Single Socket CardBus and UntraMedia Controller PCI7621 User Manual

Page 145

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5−17

5.15 ExCA Memory Windows 0−4 End-Address Low-Byte Registers

These registers contain the low byte of the 16-bit memory window end address for memory windows 0, 1, 2, 3, and 4.
The 8 bits of these registers correspond to bits A19−A12 of the end address.

Bit

7

6

5

4

3

2

1

0

Name

ExCA memory windows 0−4 end-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 end-address low-byte

Offset:

CardBus Socket Address + 812h:

Card A ExCA Offset 12h
Card B ExCA Offset 52h

Register:

ExCA memory window 1 end-address low-byte

Offset:

CardBus Socket Address + 81Ah:

Card A ExCA Offset 1Ah
Card B ExCA Offset 5Ah

Register:

ExCA memory window 2 end-address low-byte

Offset:

CardBus Socket Address + 822h:

Card A ExCA Offset 22h
Card B ExCA Offset 62h

Register:

ExCA memory window 3 end-address low-byte

Offset:

CardBus Socket Address + 82Ah:

Card A ExCA Offset 2Ah
Card B ExCA Offset 6Ah

Register:

ExCA memory window 4 end-address low-byte

Offset:

CardBus Socket Address + 832h:

Card A ExCA Offset 32h
Card B ExCA Offset 72h

Type:

Read/Write

Default: 00h

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