82C836B Просмотр технического описания (PDF) - Unspecified

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82C836B

Single-Chip 386sx AT

Unspecified 

s Architectural Overview

82C836 CHIPSet Introduction

Table 1-2 lists the key signals that signify bus ownership. Additional information

on signal functions and timing relationships is found in Section 11, System Timing

Relationships and Section 12, System Characteristics, subsection titled AC

Characteristics.

Table 1-2. Bus Ownership

HLDA

L

H

H

H

H

AEN

L

H

L

H

L

-MASTER

H

H

L

H

L

-REFRESH

H

H

H

L

L

Bus Owner

System CPU

DMA controller

Add-On card bus master

Refresh, initiated by system

Refresh, initiated by master

While -MASTER is inactive, AEN should follow HLDA. When -MASTER is active, AEN should be forced low .

1 -6 Revision 3.0

PRELIMINARY

Chips and Technologies, Inc.

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