PRELIMINARY
TM
TM
Am186 ES/ESLV and Am188 ES/ESLV
High Performance, 80C186-/80C188-Compatible and
80L186-/80L188-Compatible, 16-Bit Embedded Microcontrollers
DISTINCTIVE CHARACTERISTICS
n E86 family 80C186-/188- and 80L186-/188-
compatible microcontrollers with enhanced bus
interface
— Multidrop 9-bit serial port protocol
— Independent serial port baud rate generators
— DMA to and from the serial ports
— Lower system cost with higher performance
— Watchdog timer can generate NMI or reset
— A pulse-width demodulation option
— 3.3-V ±0.3-V operation (Am186ESLV and
Am188ESLV microcontrollers)
— A data strobe, true asynchronous bus interface
option included for DEN
n High performance
— 20-, 25-, 33-, and 40-MHz operating frequencies
— Pseudo static RAM (PSRAM) controller includes
auto refresh capability
— Supports zero-wait-state operation at 25 MHz
with 100-ns static memory (Am186ESLV and
Am188ESLV microcontrollers) and 40 MHz with
70-ns static memory (Am186ES and Am188ES
microcontrollers)
— Reset configuration register
n Familiar 80C186/80L186 peripherals
— Two independent DMA channels
— Programmable interrupt controller with up to
eight external and eight internal interrupts
— 1-Mbyte memory address space
— 64-Kbyte I/O space
— Three programmable 16-bit timers
n Enhanced features provide improved memory
access and remove the requirement for a 2x clock
input
— Programmable memory and peripheral
chip-select logic
— Programmable wait state generator
— Power-save clock divider
— Nonmultiplexed address bus
— Processor operates at the clock input frequency
n Software-compatible with the 80C186/80L186
and 80C188/80L188 microcontrollers with widely
available native development tools,
— On the Am186ES/ESLV microcontroller, 8-bit or
16-bit memory and I/O static bus option
n Enhanced integrated peripherals provide
increased functionality, while reducing system
cost
applications, and system software
n A compatible evolution of the Am186 EM and
Am188 EM microcontrollers
— Thirty-two programmable I/O (PIO) pins
n Available in the following packages:
— 100-pin, thin quad flat pack (TQFP)
— 100-pin, plastic quad flat pack (PQFP)
— Two full-featured asynchronous serial ports allow
full-duplex, 7-bit, 8-bit, or 9-bit data transfers
— Serial port hardware handshaking with CTS,
RTS, ENRX, and RTR selectable for each port
GENERAL DESCRIPTION
The Am186 ES/ESLV and Am188 ES/ESLV
microcontrollers are an ideal upgrade for 80C186/188 and
80L186/188 microcontroller designs requiring 80C186/188
and 80L186/188 compatibility, increased performance,
serial communications, and a direct bus interface.
The Am186ES/ESLV and Am188ES/ESLV
microcontrollers have been designed to meet the most
common requirements of embedded products
developed for the office automation, mass storage, and
communications markets. Specific applications include
disk drives, hand-held and desktop terminals, set-top
controllers, fax machines, printers, photocopiers,
feature phones, cellular phones, PBXs, multiplexers,
modems, and industrial controls.
The Am186ES/ESLV and Am188ES/ESLV microcontrollers
are part of the AMD E86 family of embedded
microcontrollers and microprocessors based on the x86
architecture. The E86 family includes the 16- and 32-bit
microcontrollers and microprocessors described on page 8.
This document contains information on a product under development at Advanced Micro Devices. The information
is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed
product without notice.
Publication# 20002 Rev: B Amendment/0
Issue Date: February 1997
AMD [ AMD ]
