8.26 Isochronous Receive Interrupt Mask Register

The isochronous receive interrupt mask set/clear register enables the isochRx interrupt source on a per-channel basis. Reads from either the set register or the clear register always return the contents of the isochronous receive interrupt mask register. In all cases the enables for each interrupt event align with the isochronous receive interrupt event register bits detailed in Table 8−18.

Bit

31

30

29

28

27

26

 

25

24

23

22

 

21

20

19

18

17

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Name

 

 

 

 

 

 

Isochronous receive interrupt mask

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

R

R

R

R

R

R

 

R

R

R

R

 

R

R

R

R

R

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

Isochronous receive interrupt mask

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

R

 

R

R

R

 

R

 

R

 

R

R

 

R

R

 

R

R

RSC

RSC

RSC

RSC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

0

 

0

0

0

 

0

 

0

 

0

0

 

0

0

 

0

0

X

X

X

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Register:

Isochronous receive interrupt mask

 

 

 

 

 

 

 

 

 

 

Offset:

 

A8h

set register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ACh

clear register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type:

 

Read/Set/Clear, Read-only

 

 

 

 

 

 

 

 

 

 

 

 

Default:

 

0000 000Xh

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8.27 Initial Bandwidth Available Register

The initial bandwidth available register value is loaded into the corresponding bus management CSR register on a system (hardware) or software reset. See Table 8−19 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 bandwidth available

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

Initial bandwidth available

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

R

 

R

R

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

RW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

0

 

0

0

1

0

0

1

1

0

0

1

1

0

0

1

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Register:

Initial bandwidth available

 

 

 

 

 

 

 

 

 

 

Offset:

 

B0h

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type:

 

Read-only, Read/Write

 

 

 

 

 

 

 

 

 

 

 

Default:

 

0000 1333h

 

 

 

 

 

 

 

 

 

 

 

 

Table 8−19. Initial Bandwidth Available Register Description

BIT

FIELD NAME

TYPE

DESCRIPTION

 

 

 

 

31−13

RSVD

R

Reserved. Bits 31−13 return 0s when read.

 

 

 

 

12−0

InitBWAvailable

RW

This field is reset to 1333h 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 BANDWIDTH_AVAILABLE CSR register upon

 

 

 

a GRST, PRST, or a 1394 bus reset.

 

 

 

 

8−25

Page 205
Image 205
Texas Instruments PCI7611, PCI7411 manual Isochronous Receive Interrupt Mask Register, Initial Bandwidth Available Register