Digi NS9750 User Manual

Page 451

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4 2 7

P C I - t o - A H B B r i d g e

Register bit assignment

Bits

Access

Mnemonic

Reset

Description

D31:10

Read only;
hard-wired to
0

Reserved

N/A

N/A

D09

R/W

EN_BAR5

0

Enable bridge PCI Base Address register 5

0

Disable (default)

1

Enable

Note:

Although

BAR_x

can still be accessed

when

EN_BAR5

is 1, the address range

defined by

BAR_x

will not be decoded.

D08

R/W

EN_BAR4

0

Enable bridge PCI Base Address register 4

0

Disable (default)

1

Enable

Note:

Although

BAR_x

can still be accessed

when

EN_BAR4

is 1, the address range

defined by

BAR_x

will not be decoded.

D07

R/W

EN_BAR3

0

Enable bridge PCI Base Address register 3

0

Disable (default)

1

Enable

Note:

Although

BAR_x

can still be accessed

when

EN_BAR3

is 1, the address range

defined by

BAR_x

will not be decoded.

Table 263: PCI Miscellaneous Support register

Reserved

EN_

BAR1

EN_

BAR0

INTA2

PCI

13

12

11

10

9

8

7

6

5

4

3

2

1

0

15

14

31

29

28

27

26

25

24

23

22

21

20

19

18

17

16

30

Reserved

Reserved

EN_

BAR5

EN_

BAR4

EN_

BAR3

EN_

BAR2

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