20-101-0673 Rabbit Semiconductor, 20-101-0673 Datasheet - Page 32

• Manufacturer Part Number: 20-101-0673
• Description: MODULE RABBITCORE RCM3610
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-0673

• Module/board Type: MPU Core Module
• Product: Microcontroller Modules
• Core Processor: Rabbit 3000
• Clock Speed: 22.1 MHz
• Interface Type: Serial
• Flash: 256 KB
• Timers: 10 x 8 bit, 1 x 10 bit
• Operating Supply Voltage: 3 V to 3.6 V
• Board Size: 31 mm x 54 mm x 16 mm
• Core: RCM3610
• Processor Series: RCM3600
• For Use With/related Products: RCM3610
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1103

4.1.1 Memory I/O Interface
The Rabbit 3000 address lines (A0–A18) and all the data lines (D0–D7) are routed inter-
nally to the onboard flash memory and SRAM chips. I/0 write (/IOWR) and I/0 read
(/IORD) are available for interfacing to external devices.
Parallel Port A can also be used as an external I/O data bus to isolate external I/O from the
main data bus. Parallel Port B pins PB2–PB5 and PB7 can also be used as an auxiliary
address bus.
When using the auxiliary I/O bus for either Ethernet or the LCD/keypad module on the
Prototyping Board, or for any other reason, you must add the following line at the begin-
ning of your program.
#define PORTA_AUX_IO
// required to enable auxiliary I/O bus
4.1.2 Other Inputs and Outputs
/RES is an output from the reset circuitry that can be used to reset other peripheral devices.
This pin can also be used to reset the microprocessor.
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RabbitCore RCM3600