AGP总线定义

 AGP 是 Accelerated Graphics Port，是 Intel 推出的一种 3D 图形标准接口，它能够提供四倍于 PCI 的效率，AGP2X 的传输速率达到 533MB。有关 AGP 的说明可以在 Intel 的网站上找到。

Pin

B面

A面

Pin

B面

A面

1

Spare

12V

34

Vddq3.3

Vddq3.3

2

5.0V

Spare

35

Address21

Address22

3

5.0V

Reserved

36

Address19

Address20

4

USB+

USB-

37

Ground

Ground

5

Ground

Ground

38

Address17

Address18

6

INTB#

INTA#

39

C/BE2#

Address16

7

Clock

RST#

40

Vddq3.3

Vddq3.3

8

REQ#

GNT#

41

IRDY#

FRAME#

9

Vcc3.3V

Vcc3.3V

42

10

ST0

ST1

43

Ground

Ground

11

ST2

Reserved

44

12

RBF#

PIPE#

45

Vcc3.3V

Vcc3.3V

13

Ground

Ground

46

DEVSEL#

TRDY#

14

Spare

Spare

47

Vddq3.3

STOP#

15

SBA0

SBA1

48

Perr#

Spare

16

Vcc3.3V

Vcc3.3V

49

Ground

Ground

17

SBA2

SBA3

50

SERR#

PAR

18

SB_STB

Reserved

51

C/BE1#

Address15

19

Ground

Ground

52

Vddq3.3

Vddq3.3

20

SBA4

SBA5

53

Address14

Address13

21

SBA6

SBA7

54

Address12

Address11

22

Key

Key

55

Ground

Ground

23

Key

Key

56

Address10

Address9

24

Key

Key

57

Address8

C/BE0#

25

Key

Key

58

Vddq3.3

Vddq3.3

26

Address31

Address30

59

AD_STB0

Reserved

27

Address29

Address28

60

Address7

Address6

28

Vcc3.3V

Vcc3.3V

61

Ground

Ground

29

Address27

Address26

62

Address5

Address4

30

Address25

Address24

63

Address3

Address2

31

Ground

Ground

64

Vddq3.3

Vddq3.3

32

AD_STB1

Reserved

65

Address1

Address0

33

Address23

C/BE3#

66

SMB0

SMB1