OCESSDR D I G I ULE
RELATED PRODUCTS
APPLICATION EXAMPLE
Combines Fast Ethernet, extended temperature and mass storage to bring versatility to
embedded design
DIGI RABBITCORE RCM3900
SERIES
BENEFITS
Rabbit 3000 microprocessor at 44 MHz
Extended operating temperature range:
-20° C to +80° C
10/100Base-T Ethernet
Up to 1 GB microSD hot-swappable storage
Lower-risk design of embedded systems
applications
Software debugging directly on target hardware
RabbitCore®
RCM4300
Series
RabbitCore®
RCM3000
Series
Dynamic C®RabbitCore®
RCM3209
Series
Rabbit MiniCore®
RCM6700
Series
The RabbitCore RCM3900 series of core modules has fast
program execution SRAM and data SRAM, Flash memory
and the circuitry necessary for reset and management of
battery backup for its internal real-time clock and data SRAM.
Two 34-pin headers bring out the Rabbit® 3000’s I/O bus lines,
parallel ports and serial ports.
The RCM3900 modules’ mass storage can use the Dynamic C®
software FAT file system software component to store data and
use the same directory file structure commonly used on PCs.
The microSD™ Card can be hot-swapped to transfer data
quickly using a standardized file system that can be read
directly from the RCM3900 module, or removed and read
using a microSD card reader.
MICROPROCESSOR
CORE MODULE
RABBITCORE® RCM3900
DATA PC
Track Pressure Sensor
RAILWAY SIGNALING SYSTEM
Serial
Train Signal Control Box
Ethernet
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SPECIFICATIONS RCM3900 | RCM3910
FEATURES
MICROPROCESSOR Rabbit® 3000 at 44 MHz
EMI REDUCTION Spectrum spreader for reduced EMI (radiated emissions)
ETHERNET PORT 10/100Base-T, RJ-45, 3 LEDs
SRAM 512K program (fast SRAM) + 512K data
FLASH MEMORY (PROGRAM) 512K
MEMORY (DATA STORAGE) 32 MB (fixed NAND flash) + 128 MB – 1 GB microSD™ Card 128 MB – 1 GB microSD Card
LED INDICATORS
LINK/ACT (link/activity)
FDX/COL (full-duplex/ collisions)
SPEED (on for 100Base-T Ethernet connection)
CE/BSY (NAND flash enabled/user –programable.
BACKUP BATTERY Connection for user-supplied backup battery (to support RTC and data SRAM)
GENERAL-PURPOSE I/O
52 parallel digital I/O lines:
4 configurable I/O
4 fixed inputs
4 fixed outputs
ADDITIONAL INPUTS Startup mode (2), rest in
ADDITIONAL OUTPUTS Status, rest out
EXTERNAL I/O BUS Can be configured for 8 lines and 5 address lines (shared with parallel I/O lines)
SERIAL PORTS
Five 3.3V, CMOS-compatible ports (shared with I/O):
All 5 configurable as asynchronous (with IrDA)
3 configurable as clocked serial (SPI)
2 configurable as SDL/HDLC
1 asynchronous serial port dedicated programming
SERIAL RATE Maximum asynchronous baud rate = CLK/8
SLAVE INTERFACE A slave port allows the RCM3900/RCM3910 to be used as an intelligent peripheral device slaved to a master processor,
which may either be another Rabbit 3000 or any other type of processor
REAL-TIME CLOCK Yes
TIMERS Ten 8-bit timers (6 cascadable, 3 reserved for internal peripherals, one 10-bit timer with 2 match registers
WATCHDOG/SUPERVISOR Yes
PULSE-WIDTH MODULATORS 4 PWM registers with 10-bit free-running counter and priority interrupts
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 3.15-3.45 VDC 325 mA @ 44.2 MHz, 3.3V
OPERATING TEMPERATURE -20° C to +85° C
HUMIDITY 5% to 95%, non-condensing
CONNECTORS Two 2 x 17, 2 mm pitch ; One microSD Card socket
BOARD SIZE 1.850” x 2.725” x 0.86” (47 mm x 69 mm x 22 mm)
PRODUCT WARRANTY 3 year
PART NUMBERS DESCRIPTION
20-101-1196 RCM3900. Replacement for the RCM3365
20-101-1197 RCM3910. Replacement for the RCM3375
91001578
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