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

 

 

 

 

 

 

 

5−17

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Texas Instruments PCI7611, PCI7411, PCI7621, PCI7421 manual ExCA Memory Windows 0−4 End-Address Low-Byte Registers