P R E L I M I N A R Y
TABLE OF CONTENTS
Distinctive Characteristics ............................................................................................................ 1
General Description ..................................................................................................................... 1
Am186ES Microcontroller Block Diagram..................................................................................... 2
Am188ES Microcontroller Block Diagram..................................................................................... 3
Ordering Information .................................................................................................................... 4
Related AMD Products ................................................................................................................ 8
Key Features and Benefits ........................................................................................................ 10
Comparing the ES to the 80C186 .............................................................................................. 11
Comparing the ES to the EM ..................................................................................................... 11
TQFP Connection Diagrams and Pinouts .................................................................................. 13
PQFP Connection Diagrams and Pinouts ................................................................................. 19
Logic Symbol—Am186ES Microcontroller ................................................................................. 25
Logic Symbol—Am188ES Microcontroller ................................................................................. 26
Pin Descriptions ......................................................................................................................... 27
Pins That Are Used by Emulators .................................................................................. 27
Pin Terminology ............................................................................................................. 27
A19–A0 .......................................................................................................................... 27
AD15–AD8 (Am186ES Microcontroller).......................................................................... 27
AO15–AO8 (Am188ES Microcontroller) ........................................................................ 27
AD7–AD0 ....................................................................................................................... 27
ALE ................................................................................................................................ 27
ARDY ............................................................................................................................. 27
BHE/ADEN (Am186ES Microcontroller Only) ................................................................ 28
CLKOUTA ...................................................................................................................... 28
CLKOUTB ...................................................................................................................... 28
CTS0/ENRX0/PIO21 ...................................................................................................... 28
DEN/DS/PIO5 ................................................................................................................ 29
DRQ0/INT5/PIO12 ......................................................................................................... 29
DRQ1/INT6/PIO13 ......................................................................................................... 29
DT/R/PIO4 ..................................................................................................................... 29
GND ............................................................................................................................... 29
HLDA ............................................................................................................................. 29
HOLD ............................................................................................................................. 29
INT0 ............................................................................................................................... 30
INT1/SELECT ................................................................................................................ 30
INT2/INTA0/PWD/PIO31 ............................................................................................... 30
INT3/INTA1/IRQ ............................................................................................................. 30
INT4/PIO30 .................................................................................................................... 31
LCS/ONCE0 ................................................................................................................... 31
MCS0 (MCS0/PIO14) .................................................................................................... 31
MCS2–MCS1 (MCS2/PIO24, MCS1/PIO15) ................................................................. 31
MCS3/RFSH/PIO25 ....................................................................................................... 31
NMI ................................................................................................................................ 32
PCS1–PCS0 (PCS1/PIO17, PCS0/PIO16) .................................................................... 32
PCS2/CTS1/ENRX1/PIO18 ........................................................................................... 32
PCS3/RTS1/RTR1/PIO19 .............................................................................................. 32
PCS5/A1/PIO3 ............................................................................................................... 33
PCS6/A2/PIO2 ............................................................................................................... 33
PIO31–PIO0 (Shared) .................................................................................................... 33
RD .................................................................................................................................. 35
RES ................................................................................................................................ 35
RFSH2/ADEN (Am188ES Microcontroller Only) ............................................................ 35
Am186/188ES and Am186/188ESLV Microcontrollers
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AMD [ AMD ]
