User's Manual

545C Operations Manual

02/10/2012 Prerelease DCN 00001789-A

3.3 Microprocessor

The microprocessor is a Motorola-based, embedded processor located

on a single PCB that contains:

• 512K x 16 of non-volatile flash memory for program storage

• 512K x 16 of non-volatile flash memory for parameter storage

• 1024K x 8 of static RAM for data storage (optionally 2048K x 8)

• 3 External RS-232 I/O ports

• Internal TTL GPS port

• Transmitter communication port

• Receiver communication port

• 10-bit 11 channel A/D converter (6 channels are available for

external sensors)

• Real-time clock

• Power fail detection circuitry

• Digital Signal Processor with D/A converters

• 6 Optically isolated digital inputs

• 2 Form C Relay Outputs with a current rating of 2 amps

All I/O ports are RS-232 compatible and can be programmed to adapt to

various customer protocols. The DATA port contains full flow control

hardware lines.