XIO2000AI datasheet(30/165 Pages) TI

30 / 165 page

Introduction

April 2007 Revised October 2008

SCPS155C

Table 2−10. PCI System Terminals (Continued)

SIGNAL

GZZ/ZZZ

BALL #

ZHC

BALL #

ZHH

BALL #

I/O

TYPE

CELL

TYPE

CLAMP

RAIL

EXTERNAL

PARTS

DESCRIPTION

PAR

E02

D03

D02

I/O

PCI

Bus

VCCP

−

PCI bus parity

PERR

F03

C01

D03

I/O

PCI

Bus

VCCP

Pullup

resistor per

PCI spec

PCI parity error

PME

M15

M14

L12

CMOS

VDD_33_

COMBIO

Pullup

resistor per

PCI spec

PCI power management event. This

terminal may be used to detect PME

events from a PCI device on the

secondary bus.

Note: The PME input buffer has

hysteresis.

REQ5

REQ4

REQ3

REQ2

REQ1

REQ0

B13

B12

B11

C10

C09

B08

B12

B11

C09

B09

B08

B07

A12

A11

A10

C09

A08

B07

PCI

Bus

VCCP

If unused, a

weak pullup

resistor per

PCI spec

PCI request inputs. These signals are

used for arbitration on the secondary PCI

bus when an external arbiter is not used.

REQ0 is used as the GNT for the bridge

when an external arbiter is used.

PRST

U03

P01

PCI

Bus

VCCP

−

PCI reset. This terminal is an output to

the secondary PCI bus.

SERR

E01

E03

D01

I/O

PCI

Bus

VCCP

Pullup

resistor per

PCI spec

PCI system error

STOP

F02

D02

E03

I/O

PCI

Bus

VCCP

Pullup

resistor per

PCI spec

PCI stop

TRDY

G03

F03

E01

I/O

PCI

Bus

VCCP

Pullup

resistor per

PCI spec

PCI target ready

Table 2−11. Reserved Terminals

SIGNAL

GZZ/ZZZ

BALL #

ZHC

BALL #

ZHH

BALL #

I/O

TYPE

DESCRIPTION

RSVD

N15, N16,

P16, R08,

T08, T10, T11,

T12, T14,

T15, T17,

U09, U11,

U12, U13,

U14, U15,

U16

K12, L07, L12,

M10, M11,

M13, N06,

N08, N09,

N10, N11,

P05, P06,

P08, P09,

P10, P13, P14

L07, L10, L14,

M06, M12,

M13, N06,

N08, N09,

N10, N11,

P06, P08,

P09, P10,

P11, P12, P14

Reserved, do not connect to external signals.

RSVD

R16

N12

N14

Must be connected to VDD_33.

RSVD

D16, D17,

P17, R09,

T09, U10

D12, D14,

M07, N07,

N14, P07

D13, D14,

M14, P07,

M07, N07

Must be connected to VSS.

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