20-101-1028 Rabbit Semiconductor, 20-101-1028 Datasheet - Page 44

• Manufacturer Part Number: 20-101-1028
• Description: MODULE RABBITCORE RCM3750
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-1028

• Module/board Type: MPU Core Module
• Product: Microcontroller Modules
• Core Processor: Rabbit 3000
• Flash: 512 KBytes
• Operating Supply Voltage: 4.75 to 5.25 V
• Board Size: 75 mm x 30 mm x 23 mm
• For Use With/related Products: RCM3750
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1110

5.2.1 Board Initialization
RETURN VALUE
38
void brdInit (void);
Call this function at the beginning of your program. This function initializes Parallel Ports A through G
for use with the RCM3700 Prototyping Board or the RCM3720 Prototyping Board.
The brdInit function is set up to a default I/O configuration based on the RabbitCore module detected
at compile time:
You may override these default settings to run an RCM3720 RabbitCore module on the RCM3700 Proto-
typing Board or to run another RCM3700 RabbitCore module on the RCM3720 Prototyping Board by
adding the following macro to the program you will be running.
Summary of Initialization
None.
1. I/O port pins are configured for Prototyping Board operation.
2. Unused configurable I/O are set as tied inputs or outputs.
3. The LCD/keypad module is disabled.
4. RS-485 is not enabled.
5. RS-232 is not enabled.
6. The IrDA transceiver is disabled.
7. LEDs are off.
8. The A/D converter is reset and SCLKB is to 57,600 bps (RCM3700 Prototyping Board only).
9. The A/D converter calibration constants are read (this function cannot run in RAM) (RCM3700
10. Ethernet select is disabled.
11. Serial flash select is disabled.
• Any RCM3700 RabbitCore module (except the RCM3720) will have its I/O ports configured for an
• An RCM3720 RabbitCore module will have its I/O ports configured for an RCM3720 Prototyping
•
• To run an RCM3700 RabbitCore module (other than the RCM3720) on an RCM3720 Prototyping
#define RCM3700_PROTOBOARD
#define RCM3720_PROTOBOARD
RCM3700 Prototyping Board.
Board.
macro at the top of the program you will be running.
Sample programs that are specifically designed for the RCM3700 Prototyping Board already have
this macro included. When you run a sample program designed for the RCM3700 Prototyping
Board on an RCM3720, a warning message will be displayed to inform you of that. You can disable
the warning by commenting out the line indicated by the compiler.
Board, add the following macro at the top of the program you will be running.
Prototyping Board only).
CAUTION: Pin PB7 is connected as both switch S2 and as an external I/O bus on the RCM3700
CAUTION: Pins PC1 and PG2 are tied together, and pins PC3 and PG3 are tied together on all the
To run an RCM3720 RabbitCore module on an RCM3700 Prototyping Board, add the following
Prototyping Board. Do not use S2 when the LCD/keypad module is installed.
RCM3700 RabbitCore modules. Both pairs of pins are connected to the IrDA transceiver and to
the RS-232 transceiver via serial ports on the RCM3700 Prototyping Board. Do not enable both
transceivers on the RCM3700 Prototyping Board at the same time.
RabbitCore RCM3750