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 |
