Chapter 3 – DFI CD905-B series User Manual

Page 22

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Chapter 3 Hardware Installation

22

Chapter 3

Signal

Pin#

Pin Type

Pwr Rail /Tolerance

PU/PD

Description

PCI_AD0

C24

PCI_AD1

D22

PCI_AD2

C25

PCI_AD3

D23

PCI_AD4

C26

PCI_AD5

D24

PCI_AD6

C27

PCI_AD7

D25

PCI_AD8

C28

PCI_AD9

D27

PCI_AD10

C29

PCI_AD11

D28

PCI_AD12

C30

PCI_AD13

D29

PCI_AD14

C32

PCI_AD15

D30

PCI_AD16

D37

PCI_AD17

C39

PCI_AD18

D38

PCI_AD19

C40

PCI_AD20

D39

PCI_AD21

C42

PCI_AD22

D40

PCI_AD23

C43

PCI_AD24

D42

PCI_AD25

C45

PCI_AD26

D43

PCI_AD27

C46

PCI_AD28

D44

PCI_AD29

C47

PCI_AD30

D45

PCI_AD31

C48

PCI_C/BE0#

D26

PCI_C/BE1#

C33

PCI_C/BE2#

C38

PCI_C/BE3#

C44

PCI_DEVSEL#

C36

I/O CMOS

3.3V / 5V

PU 8.2k to 3.3V

PCI bus Device Select, active low.

PCI_FRAME#

D36

I/O CMOS

3.3V / 5V

PU 8.2k to 3.3V

PCI bus Frame control line, active low.

PCI_IRDY#

C37

I/O CMOS

3.3V / 5V

PU 8.2k to 3.3V

PCI bus Initiator Ready control line, active low.

PCI_TRDY#

D35

I/O CMOS

3.3V / 5V

PU 8.2k to 3.3V

PCI bus Target Ready control line, active low.

PCI_STOP#

D34

I/O CMOS

3.3V / 5V

PU 8.2k to 3.3V

PCI bus STOP control line, active low, driven by cycle initiator.

PCI_PAR

D32

I/O CMOS

3.3V / 5V

PCI bus parity

PCI Signals Descriptions

I/O CMOS

3.3V / 5V

PCI bus multiplexed address and data lines

I/O CMOS

3.3V / 5V

PCI bus byte enable lines, active low

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