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28 initial channels available high register, 29 initial channels available low register – Texas Instruments Dual/Single Socket CardBus and UntraMedia Controller PCI7621 User Manual

Page 206

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8−26

8.28 Initial Channels Available High Register

The initial channels available high register value is loaded into the corresponding bus management CSR register on
a system (hardware) or software reset. See Table 8−20 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

Initial channels available high

Type

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

Default

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Name

Initial channels available high

Type

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

Default

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Register:

Initial channels available high

Offset:

B4h

Type:

Read/Write

Default:

FFFF FFFFh

Table 8−20. Initial Channels Available High Register Description

BIT

FIELD NAME

TYPE

DESCRIPTION

31−0

InitChanAvailHi

RW

This field is reset to FFFF_FFFFh on a system (hardware) or software reset, and is not affected by
a 1394 bus reset. The value of this field is loaded into the CHANNELS_AVAILABLE_HI CSR
register upon a GRST, PRST, or a 1394 bus reset.

8.29 Initial Channels Available Low Register

The initial channels available low register value is loaded into the corresponding bus management CSR register on
a system (hardware) or software reset. See Table 8−21 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

Initial channels available low

Type

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

Default

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Name

Initial channels available low

Type

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

Default

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Register:

Initial channels available low

Offset:

B8h

Type:

Read/Write

Default:

FFFF FFFFh

Table 8−21. Initial Channels Available Low Register Description

BIT

FIELD NAME

TYPE

DESCRIPTION

31−0

InitChanAvailLo

RW

This field is reset to FFFF_FFFFh on a system (hardware) or software reset, and is not affected by
a 1394 bus reset. The value of this field is loaded into the CHANNELS_AVAILABLE_LO CSR
register upon a GRST, PRST, or a 1394 bus reset.