20-101-0525 Rabbit Semiconductor, 20-101-0525 Datasheet - Page 57

• Manufacturer Part Number: 20-101-0525
• Description: COMPUTER SINGLE-BOARD LP3500 FOX
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-0525

• Module/board Type: Single Board Computer Module
• Product: Modules
• Processor Type: Rabbit 3000
• Sram: 512 KB
• Flash: 512 KB
• Timers: 8 bit, 10 bit
• Number Of I/os: 26
• Backup Battery: 3 V Lithium Coin Type
• Operating Voltage: 3 V to 30 V
• Board Size: 93 mm x 66 mm x 11 mm
• Description/function: Computer Module
• For Use With/related Products: LP3500
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1115

4.4.2 Board Initialization
User’s Manual
void brdInit (void);
Call this function at the beginning of your program. This function initializes the system I/O ports and
loads all the A/D converter and D/A converter calibration constants from flash memory into SRAM for
use by your program. If the LCD/keypad module is installed, this function will turn off LED DS1 to indi-
cate that the initialization was successful.
Summary of Initialization
The ports are initialized according to Table A-3.
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LP3500 uses main oscillator
LCD/keypad module buffer is disabled
RS-485 serial communication is not enabled
RS-232 serial communication is enabled
Unused configurable inputs are tied and unused configurable outputs are set low
If A/D converter chip is installed, chip is reset and SCLKD is set to 19,200 bps
If A/D converter chip is installed, calibration constants are read
If relay is installed, relay is set to NC or RESET position
Self-timed chip select is set to 109 ns
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