Compact PCI是一种基于标准PCI总线的小巧而坚固的高性能总线技术。1994年PICMG(PCI Computer Manufacturer’s Group, PCI工业计算机制造商联盟)提出了Compact PCI技术,它定义了更加坚固耐用的PCI版本。在电气、逻辑和软件方面,它与PCI标准完全兼容。卡安装在支架上,并使用标准的Eurocard外型。
二 Compact PCI规格
· 业界标准PCI芯片组,以低价格提供高性能
· 单总线8个槽,可通过PCI桥扩展
· 欧式插卡结构
· 高密度气密2mm针孔接头
· 前面板安装和拆卸
· 板卡垂直安装利于冷却
· 强抗冲击和震动特性
三 Compact PCI的三大核心技术
Compact PCI具有以下特点:
· PCI局部总线
· 标准的Eurocard尺寸(根据IEEE 1101.1机械标准)
· HD(高密度)2mm引脚与插座连接器(IEC认可,Bellcore)
· PCI局部总线
PCI即外围设备互联之意,1992年由Intel发布,很快成为商业PC机总线标准。PCI是一种独立于处理器的数据总线,不但性能良好而且价格便宜。PCI局部总线大意两种数据宽度:32位和64位,总线速度可达66MHZ,理论数据处理能力:32位为264MB/S,64位为528MB/S。大多数计算机和操作系统都支持PCI。因为有大量支持PCI的产品,使得PCI产品既便宜又容易买到。拥有这些优势,PCI总线非常适合在高速计算和高速数据通讯领域中应用。
7x47 pin (IEC917 and IEC1076-4-101) connector
7列47行(从Z到F编号).大概可以分为以下几大类
Row 1-25: 32-bit PCI
Row 26-47: Additional pins for 64-bit PCI (System Slot boards must use it).
Row 26-28 and 40-42: Primarily implemented on System Slot boards.
Z列及F列为地管脚.
具体管脚定义如下表描述:
1 | GND | 5V | -12V | TRST# | 12V | 5V | GND |
---|---|---|---|---|---|---|---|
2 | GND | TCK | 5V | TMS | DO | TDI | GND |
3 | GND | INTA# | INTB# | INTC# | 5V | INTD# | GND |
4 | GND | BRSV | GND | V(I/O) | INTP | INTS | GND |
5 | GND | BRSV | BRSV | RST | GND | GNT# | GND |
6 | GND | REQ# | GND | 3.3V | CLK | AD(31) | GND |
7 | GND | AD(30) | AD(29) | AD(28) | GND | AD(27) | GND |
8 | GND | AD(26) | GND | V(I/O) | AD(25) | AD(24) | GND |
9 | GND | C/BE(3)# | IDSEL | AD(23) | GND | AD(22) | GND |
10 | GND | AD(21) | GND | 3.3V | AD(20) | AD(19) | GND |
11 | GND | AD(18) | AS(17) | AD(16) | GND | C/BE(2)# | GND |
12 | KEY | KEY | KEY | KEY | KEY | KEY | KEY |
13 | KEY | KEY | KEY | KEY | KEY | KEY | KEY |
14 | KEY | KEY | KEY | KEY | KEY | KEY | KEY |
15 | GND | 3.3V | FRAME# | IRDY# | GND | TRDY# | GND |
16 | GND | DEVSEL# | GND | V(I/O) | STOP# | LOCK# | GND |
17 | GND | 3.3V | SDONE | SBO# | GND | PERR# | GND |
18 | GND | SERR# | GND | 3.3V | PAR | C/BE(1)# | GND |
19 | GND | 3.3V | AD(15) | AD(14) | GND | AD(13) | GND |
20 | GND | AD(12) | GND | V(I/O) | AD(11) | AD(10) | GND |
21 | GND | 3.3V | AD(9) | AD(8) | M66EN | C/BE(0)# | GND |
22 | GND | AD(7) | GND | 3.3V | AD(6) | AD(5) | GND |
23 | GND | 3.3V | AD(4) | AD(3) | 5V | AD(2) | GND |
24 | GND | AD(1) | 5V | V(I/O) | AD(0) | ACK64# | GND |
25 | GND | 5V | REQ64# | BRSV | 3.3V | 5V | GND |
26 | GND | CLK1 | GND | REQ1# | GNT1# | REQ2# | GND |
27 | GND | CLK2 | CLK3 | SYSEN# | GNT2# | REQ3# | GND |
28 | GND | CLK4 | GND | GNT3# | REQ4# | GNT4# | GND |
29 | GND | V(I/O) | BRSV | C/BE(7 ) | GND | C/BE(6)# | GND |
30 | GND | C/BE(5)# | GND | V(I/O) | C/BE(4)# | PAR64 | GND |
31 | GND | AD(63) | AD(62) | AD(61) | GND | AD(60) | GND |
32 | GND | AD(59) | GND | V(I/O) | AD(58) | AD(57) | GND |
33 | GND | AD(56) | AD(55) | AD(54) | GND | AD(53) | GND |
34 | GND | AD(52) | GND | V(I/O) | AD(51) | AD(50) | GND |
35 | GND | AD(49) | AD(48) | AD(47) | GND | AD(46) | GND |
36 | GND | AD(45) | GND | V(I/O) | AD(44) | AD(43) | GND |
37 | GND | AD(42) | AD(41) | AD(40) | GND | AD(39) | GND |
38 | GND | AD(38) | GND | V(I/O) | AD(37) | AD(36) | GND |
39 | GND | AD(35) | AD(34) | AD(33) | GND | AD(32) | GND |
40 | GND | BRSV | GND | FAL# | REQ5# | GNT5# | GND |
41 | GND | BRSV | BRSV | DEG# | GND | BRSV | GND |
42 | GND | BRSV | GND | PRST# | REQ6# | GNT6# | GND |
43 | GND | USR | USR | USR | USR | USR | GND |
44 | GND | USR | USR | USR | USR | USR | GND |
45 | GND | USR | USR | USR | USR | USR | GND |
46 | GND | USR | USR | USR | USR | USR | GND |
47 | GND | USR | USR | USR | USR | USR | GND |
Z | A | B | C | D | E | F |
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