
SD188ES/SD188EM Demonstration Board User’s Manual
viii
1.1
Theory of Operation
The SD188ES/SD188EM demonstration board demonstrates the basic processor
functionality and features of the Am188ES and Am188EM microcontrollers, and
the simplicity of their system design. As a stand-alone platform, the board enables
you to test the Am188ES and Am188EM microcontrollers’ performance and
functionality. The minimal number of components on the board exhibits the
integration present in the processor.
Demonstration Board Features
The SD188ES/SD188EM demonstration board provides the following features:
• Am188ES or Am188EM 40-MHz microcontroller
• E86
™
family boot monitor (E86MON
) board-resident utility
Information on invoking and using the E86MON software is provided in the
E86MON
TM
Software User’s Manual included in your kit.
• 128 Kbyte SRAM
• 128 Kbyte Am29F010-70 Flash memory
• Am188 104-pin expansion interface
• Two RS-232 serial ports with DB-9 connectors
Please note that the Am188EM microcontroller provides one asynchronous
serial port. Thus, when the board is populated with the Am188EM
microcontroller, only one serial port is featured.
• Activity LED indicators for PIO signals
• Power-on LED indicator
• Reset circuitry
frtbook : about1 Page viii Monday, June 2, 1997 3:37 PM