User’s Manual
1
1. I
NTRODUCTION
The RabbitCore RCM2100 series is a family of microprocessor
modules designed to be the heart of embedded control systems.
In addition to the array of I/O and addressing available on other
Rabbit Semiconductor products, the RCM2100 series offers an
optional integrated Ethernet port. These modules permit LAN
and Internet-enabled systems to be built as easily as serial com-
munications-only systems.
Throughout this manual, the term RCM2100 refers to the complete series of RCM2100
RabbitCore modules unless other production models are referred to specifically.
The RCM2100 is a microprocessor core module designed to be the heart of your own con-
troller built around the plug-in module. Data processing is done by a Rabbit 2000 micro-
processor operating at 22.1 MHz.
The RCM2100 has a Rabbit 2000 microprocessor, a static RAM, up to two flash memory
chips, two quartz crystals (main oscillator and timekeeping), and the circuitry necessary
for reset and management of battery backup of the Rabbit 2000’s internal real-time clock
and the static RAM. Two 40-pin headers bring out the Rabbit 2000 I/O bus, address lines,
data lines, parallel ports, and serial ports.
The RCM2100 receives its +5 V power from the user board on which it is mounted. The
RCM2100 can interface with all kinds of CMOS-compatible digital devices through the
user board.
