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6 pci interface – NEC Network Controller uPD98502 User Manual

Page 41

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CHAPTER 1 INTRODUCTION

Preliminary User’s Manual S15543EJ1V0UM

41

1.7.6 PCI interface

(1/2)

Pin Name

Pin No.

I/O

Active Level

Function

PSCLK

V30

I

PCI clock

PARBN

D26

I

PCI arbiter enable

PMODE

C27

I

PCI mode select (L: host, H: NIC)

PIDSEL

U28

I

H

Initialization device select

PDSEL_B

M29

I/OZ

L

Device select

PER_B

L30

I/OZ

L

Parity error

PFRA_B

N29

I/OZ

L

Cycle frame

PHINT_B

B28

I

L

PCI host interrupt

PINT_B

AC30

O

L

Interrupt_A

PIRY_B

N27

I/OZ

L

Initiator ready

PME_B

Y27

OD

L

Power management event

PRSTO_B

B29

O

L

PCI system reset out

PSERI_B

A30

I

L

System error in

PSERO_B

L29

O

L

System error out

PTRY_B

N26

I/OZ

L

Target ready

PSTP_B

M28

I/OZ

L

Stop request from target

PCBE0_B

H28

I/OZ

L

Bus command and byte enable

PCBE1_B

L26

I/OZ

L

Bus command and byte enable

PCBE2_B

N30

I/OZ

L

Bus command and byte enable

PCBE3_B

T30

I/OZ

L

Bus command and byte enable

PRQO_B

Y28

O

L

Bus request out

PRQI0_B

C30

I

L

Bus request in[0]

PRQI1_B

D29

I

L

Bus request in[1]

PRQI2_B

E28

I

L

Bus request in[2]

PRQI3_B

E27

I

L

Bus request in[3]

PGTI_B

AA28

I

L

Bus grant in

PGTO0_B

B30

O

L

Bus grant out[0]

PGTO1_B

C29

O

L

Bus grant out[1]

PGTO2_B

D28

O

L

Bus grant out[2]

PGTO3_B

C28

O

L

Bus grant out[3]

PAR

L28

I/OZ

Parity of address/data

PAD0

D30

I/OZ

PCI address and data

PAD1

G26

I/OZ

PCI address and data

PAD2

E29

I/OZ

PCI address and data

PAD3

G27

I/OZ

PCI address and data

PAD4

E30

I/OZ

PCI address and data

PAD5

F29

I/OZ

PCI address and data

PAD6

F30

I/OZ

PCI address and data

PAD7

G29

I/OZ

PCI address and data

PAD8

G30

I/OZ

PCI address and data

PAD9

H29

I/OZ

PCI address and data

PAD10

J27

I/OZ

PCI address and data