A610 View Datasheet(PDF) - Intel

Part Name

Description

Manufacturer

A610

PENTIUM® PROCESSOR at iCOMP® INDEX 61075 MHz

Intel 

PENTIUM® PROCESSOR (610\75)

Symbol

Vcc

Vss

W/R#

WB/WT#

Type

I

I

O

I

Table 3. Quick Pin Reference (Contd.)

Name and Function

The Pentium processor (610\75) has 79 3.3V power inputs.

The Pentium processor (610\75) has 72 ground inputs.

Write/read is one of the primary bus cycle definition pins. It is driven valid in

the same clock as the ADS# signal is asserted. W/R# distinguishes between

write and read cycles.

The writeback/writethrough input allows a data cache line to be defined as

writeback or writethrough on a line-by-line basis. As a result, it determines

whether a cache line is initially in the S or E state in the data cache.

3.4. Pin Reference Tables

ADS#

Name

Table 4. Output Pins

Active Level

When Floated

Low

Bus Hold, BOFF#

APCHK#

BE7#-BE5#

BREQ

CACHE#

FERR#

Low

Low

High

Low

Low

Bus Hold, BOFF#

Bus Hold, BOFF#

HIT#

Low

HITM#

HLDA

IERR#

LOCK#

M/IO#, D/C#, W/R#

Low

High

Low

Low

n/a

Bus Hold, BOFF#

Bus Hold, BOFF#

PCHK#

Low

BP3-2, PM1/BP1, PM0/BP0

PRDY

PWT, PCD

SCYC

SMIACT#

High

High

High

High

Low

Bus Hold, BOFF#

Bus Hold, BOFF#

TDO

n/a

All states except Shift-DR and Shift-IR

NOTE:

All output and input/output pins are floated during tristate test mode (except TDO).

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