AGP总线定义

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    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
1 Spare 12V
2 5.0V Spare
3 5.0V Reserved
4 USB+ USB-
5 Ground Ground
6 INTB# INTA#
7 Clock RST#
8 REQ# GNT#
9 Vcc3.3V Vcc3.3V
10 ST0 ST1
11 ST2 Reserved
12 RBF# PIPE#
13 Ground Ground
14 Spare Spare
15 SBA0 SBA1
16 Vcc3.3V Vcc3.3V
17 SBA2 SBA3
18 SB_STB Reserved
19 Ground Ground
20 SBA4 SBA5
21 SBA6 SBA7
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 Ground Ground
32 AD_STB1 Reserved
33 Address23 C/BE3#
34 Vddq3.3 Vddq3.3
35 Address21 Address22
36 Address19 Address20
37 Ground Ground
38 Address17 Address18
39 C/BE2# Address16
40 Vddq3.3 Vddq3.3
41 IRDY# FRAME#
42 　 　
43 Ground Ground
44 　 　
45 Vcc3.3V Vcc3.3V
46 DEVSEL# TRDY#
47 Vddq3.3 STOP#
48 Perr# Spare
49 Ground Ground
50 SERR# PAR
51 C/BE1# Address15
52 Vddq3.3 Vddq3.3
53 Address14 Address13
54 Address12 Address11
55 Ground Ground
56 Address10 Address9
57 Address8 C/BE0#
58 Vddq3.3 Vddq3.3
59 AD_STB0 Reserved
60 Address7 Address6
61 Ground Ground
62 Address5 Address4
63 Address3 Address2
64 Vddq3.3 Vddq3.3
65 Address1 Address0
66 SMB0 SMB1