Rabbit RabbitCore User manual - 1. I
User’s Manual
1
1. I
NTRODUCTION
The RCM3750 is a compact module that incorporates the latest
revision of the powerful Rabbit
®
3000 microprocessor, flash
memory, onboard serial flash, static RAM, and digital I/O ports.
The RCM3750 features an integrated 10/100Base-T Ethernet
port that provides for LAN and Internet-enabled systems.
Throughout this manual, the term RCM3700 refers to the complete line of RCM3700 Rab-
bitCore modules, and includes the RCM3750 unless other production models are referred
to specifically.
The RCM3750 has a Rabbit 3000 microprocessor operating at 22.1 MHz, static RAM,
flash memory, two clocks (main oscillator and real-time clock), and the circuitry necessary
for reset and management of battery backup of the Rabbit 3000’s internal real-time clock
and the static RAM. One 40-pin header brings out the Rabbit 3000 I/O bus lines, parallel
ports, and serial ports.
The RCM3750 receives regulated DC power from the customer-supplied motherboard on
which it is mounted. The RCM3750 can interface with all kinds of CMOS-compatible
digital devices through the motherboard.
The Development Kit and the Ethernet Connection Kit have what you need to design your
own microprocessor-based system: a complete Dynamic C
®
software development system
with optional modules and a Prototyping Board that allows you to evaluate the RCM3750
and to prototype circuits that interface to the RCM3750 module.
1.1 RCM3750 Features
•
Small size: 1.20" x 2.95" x 0.89"
(30 mm x 75 mm x 23 mm)
•
Microprocessor: latest revision of Rabbit 3000 running at 22.1 MHz supports Dynamic C
Secure Sockets Layer (SSL) module for added security
•
33 parallel 5 V tolerant I/O lines: 31 configurable for I/O, 2 fixed outputs
•
External reset I/O
•
Alternate I/O bus can be configured for 8 data lines and 5 address lines (shared with
parallel I/O lines), I/O read/write
•
Ten 8-bit timers (six cascadable) and one 10-bit timer with two match registers