Ampro Corporation P5X 用户手册

2–60

Table 2– 54. PC/104-Plus Expansion Bus Connector, P21 (A1-D30)

1

GND/5.0V KEY

4

Reserved

+5

AD00

2

VI/O (+5V)

AD02

AD01

+5V

3

AD05

GND

AD04

AD03

4

C/BE0*

AD07

GND

AD06

5

GND

AD09

AD08

GND

6

AD11

VI/O (+5V)

AD10

M66EN

1

7

AD14

AD13

GND

AD12

8

+3.3V

C/BE1*

AD15

+3.3V

9

SERR*

GND

SB0*

PAR

10

GND

PERR*

+3.3V

SDONE

11

STOP*

+3.3V

LOCK*

GND

12

+3.3V

TRDY*

GND

DEVSEL*

13

FRAME*

GND

IRDY*

+3.3V

14

GND

AD16

+3.3V

C/BE2*

15

AD18

+3.3V

AD17

GND

16

AD21

AD20

GND

AD19

17

+3.3V

AD23

AD22

+3.3V

18

IDSEL0

GND

IDSEL1

IDSEL2

19

AD24

C/BE3*

VI/O (+5V)

IDSEL3

20

GND

AD26

AD25

GND

21

AD29

+5V

AD28

AD27

22

+5V

AD30

GND

AD31

23

REQ0*

GND

REQ1*

VI/O

24

GND

REQ2*

+5V

GNT0*

25

GNT1*

VI/O (+5V)

GNT2*

GND

26

+5V

CLK0

GND

CLK1F

27

CLK2

+5V

CLK3

GND

28

GND

INTD*

+5V

RST*

29

+12V

INTA*

INTB*

INTC*

30

-12V

Reserved

Reserved

GND/3.3V KEY

4

PCI Bus (P21) Notes

1.  Signal M66EN is grounded on the motherboard (Ground = 33MHz bus speed).