A386DX データシートの表示（PDF） - Intel

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A386DX

32-BIT CHMOS MICROPROCESSOR WITH INTEGRATED MEMORY MANAGEMENT

Intel 

Intel386TM DX MICROPROCESSOR

1 1 PIN DESCRIPTION TABLE (Continued)

Symbol

Type

Name and Function

HLDA

O

BUS HOLD ACKNOWLEDGE output indicates that the Intel386 DX

has surrendered control of its local bus to another bus master

BUSY

I

BUSY signals a busy condition from a processor extension

ERROR

I

ERROR signals an error condition from a processor extension

PEREQ

I

PROCESSOR EXTENSION REQUEST indicates that the processor

extension has data to be transferred by the Intel386 DX

INTR

I

INTERRUPT REQUEST is a maskable input that signals the Intel386

DX to suspend execution of the current program and execute an

interrupt acknowledge function

NMI

I

NON-MASKABLE INTERRUPT REQUEST is a non-maskable input

that signals the Intel386 DX to suspend execution of the current

program and execute an interrupt acknowledge function

RESET

I

RESET suspends any operation in progress and places the Intel386

DX in a known reset state See Interrupt Signals for additional

information

NC

NO CONNECT should always remain unconnected Connection of a

N C pin may cause the processor to malfunction or be incompatible

with future steppings of the Intel386 DX

VCC

I

SYSTEM POWER provides the a5V nominal D C supply input

VSS

I

SYSTEM GROUND provides 0V connection from which all inputs and

outputs are measured

7

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