The RCM3400 analog RabbitCore provides a known-good processor and analog input subsystem for OEMs to quickly integrate into custom designs. The RCM3400 features a low-EMI Rabbit 3000-based CPU subsystem running at 29.4 MHz, with 512K Flash / 512K SRAM or 256K Flash / 256K SRAM, 5 serial ports, and 8 channels of programmable gain analog input in an extremely small footprint (1.37" × 1.16" / 34 × 29 mm). The RCM3400 comes with a pre-assigned MAC I.D. to be Ethernet ready and the development board features 10/100Base-T Ethernet and can be used as a reference design in conjunction with Dynamic C's royalty-free TCP/IP software libraries. Extensive demo programs and software application templates make it easy to get the RCM3400 up and running in record time.
RabbitCores mount directly on a user-designed motherboard and can interface with all manner of CMOS-compatible digital devices. Two 34-pin connectors route 47 digital I/O (shared with serial ports), power, and other signals to the motherboard. Built-in low-EMI features, including a clock spectrum spreader, practically eliminate EMI problems, helping OEMs pass CE and regulatory RF emissions tests.
The RCM3400 is equipped with 5 V tolerant I/O, quadrature encoder inputs, PWM outputs, and pulse capture and measurement capabilities. The RCM3400 also features a battery-backable real-time clock, glueless memory and I/O interfacing, and low-power “sleepy” modes. A fully enabled 8-bit slave port permits easy master-slave interfacing with another processor-based system, and an alternate I/O bus can be configured for 8 data lines and 6 address lines (shared with parallel I/O).
Programmed with Dynamic C, the RCM3400 executes math, logic, and I/O exceptionally quickly. The Rabbit 3000 chip, RCM3400, and Dynamic C were designed in a complementary fashion for maximum performance and ease of use in embedded systems. Our industry-proven Dynamic C® development system is a C-language environment that includes an editor, compiler, and in-circuit debugger. User programs can be compiled, executed, and debugged using Dynamic C and a programming cable—no in-circuit emulator is required. An extensive library of drivers and sample programs is provided, including royalty-free TCP/IP stack with source code.
Microprocessor Rabbit 3000 at 29.4 MHz
EMI Reduction Spectrum spreader for reduced EMI (radiated emissions)
Backup Battery Connection for user-supplied battery (to support RTC and SRAM)
Analog Inputs: 8 channels single-ended (11-bit) or
4 channels differential (12-bit)
Programmable gain: 1, 2, 4, 5, 8, 10, 16, and 20 V/V
General-Purpose: I/O 47 digital I/O
• 41 configurable I/O
• 3 fixed inputs
• 3 fixed outputs
Additional Inputs: 2 Startup Mode, Reset In, CONVERT
Additional Outputs: Status, Reset Out, BVREF
Auxiliary I/O: Bus 8 data and 6 address (shared with I/O), I/O Read-Write
Serial Ports: 5 CMOS-compatible:
• 4 configurable as asynchronous (with IrDA), 3 as clocked serial (SPI), and 2 as SDLC/HDLC (with IrDA)
• 1 asynchronous serial port dedicated for programming
• Support for MIR/SIR IrDA transceiver
Serial Rate Max. asynchronous baud rate = CLK/8
Slave Interface: Slave port permits use as master or intelligent peripheral with Rabbit-based or other master controller
Timers: Ten 8-bit timers (6 cascadable from the first) and one 10-bit timer with 2 match registers
Pulse-Width Modulators: 10-bit free-running counter and four pulse-width registers
Input Capture: 2-channel input capture can be used to time input signals from various port pins.
Quadrature Decoder: 2-channel quadrature decoder accepts inputs from external incremental encoder modules.
Power 3.0-3.45 V DC @ 29.4MHz / 2.8-3.45 V DC @ 14.7 MHz
97 mA @ 3.3 V, 29.4 MHz / 57 mA @ 3.0 V, 14.7 MHz
Operating Temp. -40°C to +85°C
Humidity 5-95%, noncondensing
Connectors: Two 2 x 17 (1.27 mm pitch)
Board Size: 1.37" × 1.16 " × 0.31" (35 × 29 × 7.9 mm)