PRELIMINARY
Net186-EVAL-KT
Am186 ES and PCnet-ISA II Based Stand-Alone
Evaluation Platform
DISTINCTIVE CHARACTERISTICS
s
Am186 ES-40 MHz Microcontroller
鈥?80C186 compatibility
鈥?Glueless interface to PSRAM, SRAM, FLASH,
and ROM memory systems
鈥?Demultiplexed address/data bus
鈥?Two DMA channels
鈥?32 programmable I/O (PIO) pins
s
Am79C961A PCnet-ISA II Ethernet Controller
鈥?Single-chip Ethernet controller for direct
interface to ISA and EISA buses
鈥?Supports IEEE 802.3/ANSI 8802-3 Ethernet
standards
鈥?Supports full duplex operation on the
10Base-T, AUI and GPSI ports
鈥?Supports Magic Packet鈩?Technology for
waking up remote Ethernet nodes
鈥?Software compatible with Am7990/Am79C90
LANCE鈩?CLANCE鈩?register and descriptor
architecture
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Communication Ports
鈥?Two RS-232 serial por ts driven by the
Am186ES via two DB-9 DCE connectors
鈥?One 10Base-T Ethernet port driven by the
PCnet-ISA II via an RJ-45 connector
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Expansion Bus
鈥?Am186 Expansion Interface
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Memory
鈥?One 512Kbytes SRAM
鈥?One 512Kbytes FLASH (Am29F400)
鈥?Capable of addressing up to 1Mbytes of
FLASH software
鈥?E86MON monitor program with source code
鈥?Utility programs for PCnet-ISA II with source
codes
鈥?PAL equations for board setup
GENERAL DESCRIPTION
The Net186 evaluation board meets the needs of cus-
tomers working with embedded networking control
applications using the Am186ES microcontroller and
the PCnet-ISA II single-chip Ethernet controller. This
board provides a complete stand-alone, microcontrol-
ler and Ethernet-based evaluation in a low-cost, excep-
tionally small form-factor product.
This evaluation board features the Am186ES, high-per-
formance, 80C186-compatible, 16-bit embedded con-
troller, and the PCnet-ISA II high performance, 16-bit,
single-chip Ethernet controller for ISA.
The microcontroller section consists of the Am186ES,
512 Kbytes FLASH and 512 Kbytes SRAM. The Ether-
net section consists of a PAL for glue logic and the
Am79C961A PCnet-ISA II. The design takes advan-
tages of the Bus Mastering capability of the PCnet-ISA
II to achieve high performance and low system cost,
while reducing the amount of software overhead on the
microcontroller.
Communication with the Net186 can be accomplished
through either one of the two RS-232 serial ports or
t h r o u g h t h e h i g h s p e e d 1 0 M b p s E t h e rn e t
10Base-T port.
Am186ES Microcontroller
The Am186ES microcontroller and its companion
Am188ES microcontroller integrate the functions of the
CPU, non-multiplexed address bus, three timers, a
watchdog timer, chip selects, interrupt controller, two
DMA controllers, PSRAM controller, asynchronous
serial ports, programmable bus sizing, and program-
mable I/O (PIO) pins on one chip. Compared to the
80C186/188 microcontrollers, the Am186ES and the
Am188ES microcontrollers can reduce the size, power
consumption, and cost of embedded systems, while in-
creasing reliability, functionality, and performance.
The Am186ES and Am188ES microcontrollers are part
of the AMD E86 family embedded microcontrollers and
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#
21446
Rev:
A
Amendment/0
Issue Date:
April 1997
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