TM
TM
Am186 and Am188
ER
ER
High-Performance, 80C186- and 80C188-Compatible,
16-Bit Embedded Microcontrollers with RAM
— DMA to and from asynchronous serial port
DISTINCTIVE CHARACTERISTICS
— Synchronous serial interface allows half-duplex,
bidirectional data transfer to and from ASICs
n E86TM family 80C186- and 80C188-compatible
microcontrollers with enhanced bus interface
— Reset configuration register
— Additional external interrupts
— Lower system cost with high performance
— 3.3-V ± 0.3-V operation with 5-V tolerant I/O
n Memory integration
— Hardware watchdog timer can generate NMI or
system reset
— 32 Kbyte of internal SRAM
— Pseudo static RAM (PSRAM) controller includes
auto refresh capability
— Internal SRAM provides same performance as
zero-wait-state external memory
n Familiar 80C186 peripherals with enhanced
n High performance
functionality
— 25-, 33-, 40- and 50-MHz operating frequencies
— Two independent DMA channels
— Supports zero-wait-state operation at 50 MHz
with 55-ns external memory
— Programmable interrupt controller with six
external interrupts
— 1-Mbyte memory address space
— 64-Kbyte I/O space
— Three programmable 16-bit timers
— Programmable memory and peripheral
chip-select logic
n Enhanced features provide faster access to
memory and various clock input modes
— Programmable wait state generator
— Power-save clock mode
— Nonmultiplexed address bus provides glueless
interface to external RAM and ROM
n Software-compatible with the 80C186 and
— Phase-locked loop (PLL) enables processor to
operate at up to four times clock input frequency
80C188 microcontrollers
n Widely available native development tools,
n Enhanced integrated peripherals
applications, and system software
— 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)
— Asynchronous serial port allows full-duplex, 7-bit
or 8-bit data transfers
GENERAL DESCRIPTION
The Am186TMER and Am188TMER microcontrollers are
part of the AMD E86™ family of embedded
microcontrollers and microprocessors based on the
x86 architecture. The Am186ER and Am188ER
microcontrollers are the ideal upgrade for designs
requiring 80C186/80C188 microcontroller
compatibility, increased performance, serial
communications, a direct bus interface, and integrated
memory.
(PIO) pins on one chip. Compared to the 80C186/
80C188 microcontrollers, the Am186ER and
Am188ER microcontrollers enable designers to reduce
the size, power consumption, and cost of embedded
systems, while increasing functionality and
performance.
The Am186ER and Am188ER microcontrollers have
been designed to meet the most common
requirements of embedded products developed for the
communications, office automation, mass storage, and
general embedded markets. Specific applications
include feature phones, cellular phones, PBXs,
multiplexers, modems, disk drives, hand-held terminals
and desktop terminals, fax machines, printers,
photocopiers, and industrial controls.
The Am186ER and Am188ER microcontrollers
integrate memory and the functions of the CPU,
nonmultiplexed address bus, timers, chip selects,
interrupt controller, DMA controller, PSRAM controller,
watchdog timer, asynchronous serial port,
synchronous serial interface, and programmable I/O
© Copyright 2000 Advanced Micro Devices, Inc. All rights reserved.
Publication# 20732 Rev: D Amendment/0
Issue Date: June 2000
AMD [ AMD ]
