AM186EM datasheet(5/98 Pages) AMD

5 / 98 page

Am186/188EM and Am186/188EMLV Microcontrollers

P R E L IMINAR Y

TABLE OF CONTENTS

Distinctive Characteristics ............................................................................................................ 1

General Description ..................................................................................................................... 1

Am186EM Microcontroller Block Diagram .................................................................................... 2

Am188EM Microcontroller Block Diagram .................................................................................... 3

Ordering Information .................................................................................................................... 4

Related AMD Products ................................................................................................................ 8

Key Features and Benefits ........................................................................................................ 10

TQFP Connection Diagrams and Pinouts .................................................................................. 11

PQFP Connection Diagrams and Pinouts ................................................................................. 17

Logic Symbol—Am186EM Microcontroller ................................................................................ 23

Logic Symbol—Am188EM Microcontroller ................................................................................ 24

Pin Descriptions

Pins that Are Used by Emulators ................................................................................... 25

A19–A0 ........................................................................................................................... 25

AD7–AD0 ....................................................................................................................... 25

AD15–AD8 (Am186EM Microcontroller) ......................................................................... 25

AO15–AO8 (Am188EM Microcontroller) ........................................................................ 25

ALE ................................................................................................................................ 25

ARDY ............................................................................................................................. 25

BHE/ADEN (Am186EM Microcontroller Only) ............................................................... 26

CLKOUTA ...................................................................................................................... 26

CLKOUTB ...................................................................................................................... 26

DEN/PIO5 ...................................................................................................................... 26

DRQ1–DRQ0 .................................................................................................................. 26

DT/R/PIO4 ..................................................................................................................... 26

GND ............................................................................................................................... 27

HLDA ............................................................................................................................. 27

HOLD ............................................................................................................................. 27

INT0 ............................................................................................................................... 27

INT1/SELECT ................................................................................................................ 27

INT2/INTA0/PIO31 ......................................................................................................... 27

INT3/INTA1/IRQ ............................................................................................................. 27

INT4/PIO30 .................................................................................................................... 28

LCS/ONCE0 ................................................................................................................... 28

MCS3/RFSH/PIO25 ....................................................................................................... 28

MCS2–MCS0 .................................................................................................................. 28

NMI ................................................................................................................................ 28

PCS3–PCS0 ................................................................................................................... 29

PCS5/A1/PIO3 ............................................................................................................... 29

PCS6/A2/PIO2 ............................................................................................................... 29

PIO31–PIO0 (Shared) .................................................................................................... 29

RD .................................................................................................................................. 31

RES ................................................................................................................................ 31

RFSH2/ADEN (Am188EM Microcontroller Only) ........................................................... 31

RXD/PIO28 .................................................................................................................... 31

S2–S0 ............................................................................................................................ 31

S6/CLKDIV2/PIO29 ....................................................................................................... 31

SCLK/PIO20 .................................................................................................................. 32

SDATA/PIO21 ................................................................................................................ 32

SDEN1/PIO23, SDEN0/PIO22 ....................................................................................... 32

SRDY/PIO6 .................................................................................................................... 32

TMRIN0/PIO11 .............................................................................................................. 32

AM186EM Datasheet(PDF) 5 Page - Advanced Micro Devices

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