Rabbit BL2020, User Manual

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User’s Manual 1
1. I
NTRODUCTION
The BL2000 is a high-performance, C-programmable single-
board computer that offers built-in digital and analog I/O com-
bined with Ethernet connectivity in a compact form factor. A
Rabbit
®
2000 microprocessor operating at 22.1 MHz provides
fast data processing. An optional plastic enclosure is available,
and may be wall-mounted or panel-mounted.
1.1 BL2000 Description
The BL2000 is an advanced single-board computer that incorporates the powerful Rabbit
2000 microprocessor, flash memory, static RAM, digital I/O ports, A/D converter inputs,
D/A converter outputs, an SPDT relay output, and a 10Base-T Ethernet port.
1.2 BL2000 Features
•
Rabbit
®
2000 microprocessor operating at 22.1 MHz.
•
128K static RAM and 256K flash memory.
•
Up to 28 digital I/O:
11 protected digital inputs (plus up to 7 dual-purpose unbuffered analog inputs that
may be software-configured for use as digital inputs) and 10 high-current digital
sinking outputs that may be factory-configured as sourcing outputs.
•
11 analog channels: nine 12-bit A/D converter inputs, two 12-bit D/A converter outputs.
•
Onboard SPDT relay.
•
One RJ-45 Ethernet port compliant with IEEE 802.3 standard for 10Base-T Ethernet
protocol.
•
Eight status LEDs.
•
4 serial ports (2 RS-232 or 1 RS-232 with RTS/CTS, 1 RS-485, and 1 CMOS-compati-
ble programming port).
•
Real-time clock.
•
Watchdog supervisor.
•
Voltage regulator.