揭秘AGP总线：深度解析其定义、应用与未来发展

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。 引脚定义

Pin B面 A面

1Spare 12V

25.0VSpare

35.0VReserved

4USB+USB-

5 Ground Ground

6 INTB#INTA#

7 ClockRST#

8 REQ# GNT#

9Vcc3.3V Vcc3.3V

10 ST0 ST1

11 ST2 Reserved

12 RBF#PIPE#

13 GroundGround

14 Spare Spare

15 SBA0SBA1

16 Vcc3.3V Vcc3.3V

17 SBA2SBA3

18 SB_STBReserved

19 GroundGround

20 SBA4SBA5

21 SBA6SBA7

22 Key Key

23 Key Key

24 Key Key

25 Key Key

26 Address31 Address30

27 Address29 Address28

28 Vcc3.3V Vcc3.3V

29 Address27 Address26

30 Address25 Address24

31 GroundGround

32 AD_STB1 Reserved

33 Address23 C/BE3#

34 Vddq3.3 Vddq3.3

35 Address21 Address22

36 Address19 Address20

37 GroundGround

38 Address17 Address18

39 C/BE2#Address16

40 Vddq3.3 Vddq3.3

41 IRDY# FRAME#

42

43 GroundGround

44

45 Vcc3.3V Vcc3.3V

46 DEVSEL# TRDY#

47 Vddq3.3 STOP#

48 Perr# Spare

49 GroundGround

50 SERR# PAR

51 C/BE1#Address15

52 Vddq3.3 Vddq3.3

53 Address14 Address13

54 Address12 Address11

55 GroundGround

56 Address10 Address9

57 Address8C/BE0#

58 Vddq3.3 Vddq3.3

59 AD_STB0 Reserved

60 Address7Address6

61 Ground Ground

62 Address5 Address4

63 Address3 Address2

64 Vddq3.3Vddq3.3

65 Address1 Address0

66 SMB0 SMB1