User`s manual

2 RabbitCore 2000
The RabbitCore 2000 is a microprocessor core module designed to be the heart of your
own controller built around the plug-in module. Data processing is done by a Rabbit 2000
microprocessor operating at 25.8 MHz (RCM2000 and RCM2010).
The RabbitCore 2000 has a Rabbit 2000 microprocessor, a static RAM, a flash memory,
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 RabbitCore 2000 receives its +5 V power from the user board on which it is mounted.
The RabbitCore 2000 can interface will all kinds of digital devices through the user board.
The RabbitCore 2000 Development Kit comes with a Prototyping Board that can be used
to demonstrate the operation of the RabbitCore 2000 and to prototype new circuits.
1.1 Features
• Small size: 1.90" × 2.30" (48.3 mm × 58.4 mm)
• Microprocessor: Rabbit 2000 running at 25.8 MHz (RCM2000 and RCM2010)
• 40 CMOS-compatible parallel I/O lines grouped in five 8-bit ports (shared with serial
ports)
• 8 data lines (D0–D7)
• 13 address lines (A0–A12)
• I/0 read, write, buffer enable
• Status, watchdog and clock outputs
• Two startup mode inputs for master/slave configuration
• External reset input
• Reset output
• Five 8-bit timers, two 10-bit timers; five timers are cascadable in pairs
• 256K flash EPROM, 512K SRAM
• Real-time clock
• Watchdog supervisor
• Provision for customer-supplied backup battery via connections on header J2
• Four CMOS-compatible serial ports: maximum asynchronous baud rate of 806,400 bps ,
maximum synchronous baud rate of 6.45 Mbps. Two ports are configurable as clocked
ports.
Appendix A, “Specifications,” provides detailed specifications for the RabbitCore 2000.
Three versions of the RabbitCore 2000 are available. Their standard features are summa-
rized in Table 1.