22 subsystem access register – Texas Instruments Dual/Single Socket CardBus and UntraMedia Controller PCI7621 User Manual

Page 252

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11−14

11.22 Subsystem Access Register

The contents of the subsystem access register are aliased to the subsystem vendor ID and subsystem ID registers
at PCI offsets 2Ch and 2Eh, respectively. See Table 11−15 for a complete description of the register contents.

Bit

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

Name

Subsystem access

Type

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

Default

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Name

Subsystem access

Type

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

Default

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Register:

Subsystem access

Offset:

50h

Type:

Read/Write

Default:

0000 0000h

Table 11−15. Subsystem Access Register Description

BIT

FIELD NAME

TYPE

DESCRIPTION

31−16

SubsystemID

RW

Subsystem device ID. The value written to this field is aliased to the subsystem ID register at
PCI offset 2Eh.

15−0

SubsystemVendorID

RW

Subsystem vendor ID. The value written to this field is aliased to the subsystem vendor ID
register at PCI offset 2Ch.

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