PCI总线接口定义图.doc

《PCI总线接口定义图.doc》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、PCI总线接口定义图为32位总线，且可扩展为64位，有124个脚（实际上去掉4个定位卡有120引脚），AD线有32条，工作频率为33MHZ/66MHZ，最大传输速率133MB/S。总线宽度32位(5V)  64位3.3V。 ＰＣＩ总线（３２位）底视图 名称信号名称信号名称PinSideA1RSideA2RSideB1RSideB2R1TRST#352+12V535-12V∞TCK02TMS∞TD1350Ground0TDO∞3+5V352INTA#526+5V351+5V3504INTC#528+5V350INTB#5

2、26INTD#5265Reserved543+5V351PRSNT1#∞Reserved∞6Reserved∞Ground0PRSNT2#∞Ground07Ground0Reserved∞Ground0Reserved∞8Reset#477+5V351Ground0CLK7349GNT#500Ground0Ground0REQ#47310Reserved1955AD(30)477+5V350AD(31)47711+3.3V∞AD(28)477AD(29)477Ground012AD(26)477Ground0AD(27

3、477AD(25)47713AD(24)476IDSEL593+3.3V∞C/BE#(3)48614+3.3V∞AD(22)477AD(23)477Ground015AD(20)477Ground0AD(21)477AD(19)47716AD(18)460AD(16)477+3.3V∞AD(17)47717+3.3V∞FRAME#477C/BE#(2)484Ground018Ground0TRDY#477ITRDY#477TRDY#∞19Ground0STOP#477DEVSEL#484Ground020+3.3V∞S

4、DONE1669LOCK#497PERR#1666 21SBO#1667Ground0+3.3V∞SERR#47222PAR476AD(15)477+3.3V∞C/BE#(1)48523+3.3V∞AD(13)477AD(14)477Ground024AD(11)477Ground0AD(12)477AD(10)47725AD(09)477定位卡 Ground0定位卡 26定位卡 C/BE#(0)485定位卡 AD(08)47727+3.3V∞AD(06)477AD(07)477+3.3V∞28AD(04)477Gro

5、und0AD(O5)477AD(03)47729AD(02)477AD(00)477Ground0AD(01)47730+5V350REQ64#1880+5V350ACK64#∞31+5V351+5V352+5V350+5V350注：１、“＃”表低电平有效。２、Reserved为保留线。３、Ground为地。４、ＡＤ线为数据地址复合线。Pin+5V+3.3VUniversalDescriptionA1TRST　　TestLogicResetA2+12V　　+12VDCA3TMS　　TestMdeSelectA4TDI　

6、　TestDataInputA5+5V　　+5VDCA6INTA　　InterruptAA7INTC　　InterruptCA8+5V　　+5VDCA9RESV01　　ReservedVDCA10+5V+3.3VSignalRail+VI/O(+5Vor+3.3V)A11RESV03　　ReservedVDCA12GND03(OPEN)(OPEN)GroundorOpen(Key)A13GND05(OPEN)(OPEN)GroundorOpen(Key)A14RESV05　　ReservedVDCA15RESET　　R

7、esetA16+5V+3.3VSignalRail+VI/O(+5Vor+3.3V)A17GNT　　GrantPCIuseA18GND08　　GroundA19RESV06　　ReservedVDCA20AD30　　Address/Data30A21+3.3V01　　+3.3VDCA22AD28　　Address/Data28A23AD26　　Address/Data26A24GND10　　GroundA25AD24　　Address/Data24A26IDSEL　　InitializationDeviceSelect

8、A27+3.3V03　　+3.3VDCA28AD22　　Address/Data22A29AD20　　Address/Data20A30GND12　　GroundA31AD18　　Address/Data18A32AD16　　Address/Data16A33+3.3V05　　+3.3VDCA34FRAME　　AddressorD