Table 5−1. ExCA Registers and Offsets

EXCA REGISTER NAME

PCI MEMORY ADDRESS

EXCA OFFSET

EXCA OFFSET

OFFSET (HEX)

(CARD A)

(CARD B)

 

 

 

 

 

Identification and revision ‡

800

00

40

 

 

 

 

Interface status

801

01

41

 

 

 

 

Power control †

802†

02

42

 

 

 

 

Interrupt and general control †

803†

03

43

 

 

 

 

Card status change †

804†

04

44

 

 

 

 

Card status change interrupt configuration †

805†

05

45

 

 

 

 

Address window enable

806

06

46

 

 

 

 

I / O window control

807

07

47

 

 

 

 

I / O window 0 start-address low-byte

808

08

48

 

 

 

 

I / O window 0 start-address high-byte

809

09

49

 

 

 

 

I / O window 0 end-address low-byte

80A

0A

4A

 

 

 

 

I / O window 0 end-address high-byte

80B

0B

4B

 

 

 

 

I / O window 1 start-address low-byte

80C

0C

4C

 

 

 

 

I / O window 1 start-address high-byte

80D

0D

4D

 

 

 

 

I / O window 1 end-address low-byte

80E

0E

4E

 

 

 

 

I / O window 1 end-address high-byte

80F

0F

4F

 

 

 

 

Memory window 0 start-address low-byte

810

10

50

 

 

 

 

Memory window 0 start-address high-byte

811

11

51

 

 

 

 

Memory window 0 end-address low-byte

812

12

52

 

 

 

 

Memory window 0 end-address high-byte

813

13

53

 

 

 

 

Memory window 0 offset-address low-byte

814

14

54

 

 

 

 

Memory window 0 offset-address high-byte

815

15

55

 

 

 

 

Card detect and general control †

816

16

56

 

 

 

 

Reserved

817

17

57

 

 

 

 

Memory window 1 start-address low-byte

818

18

58

 

 

 

 

Memory window 1 start-address high-byte

819

19

59

 

 

 

 

Memory window 1 end-address low-byte

81A

1A

5A

 

 

 

 

Memory window 1 end-address high-byte

81B

1B

5B

 

 

 

 

Memory window 1 offset-address low-byte

81C

1C

5C

 

 

 

 

Memory window 1 offset-address high-byte

81D

1D

5D

 

 

 

 

Global control ‡

81E

1E

5E

 

 

 

 

Reserved

81F

1F

5F

 

 

 

 

Memory window 2 start-address low-byte

820

20

60

 

 

 

 

Memory window 2 start-address high-byte

821

21

61

 

 

 

 

Memory window 2 end-address low-byte

822

22

62

 

 

 

 

Memory window 2 end-address high-byte

823

23

63

 

 

 

 

Memory window 2 offset-address low-byte

824

24

64

 

 

 

 

Memory window 2 offset-address high-byte

825

25

65

One or more bits in this register are cleared only by the assertion of GRST when PME is enabled. If PME is not enabled, then this bit is cleared by the assertion of PRST or GRST.

One or more bits in this register are cleared only by the assertion of GRST.

5−3

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Texas Instruments PCI7421, PCI7411, PCI7611, PCI7621 manual 1. ExCA Registers and Offsets