20-101-0356 Rabbit Semiconductor, 20-101-0356 Datasheet - Page 71

• Manufacturer Part Number: 20-101-0356
• Description: COMPUTER SINGLE-BOARD BL1800
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-0356

• Module/board Type: Single Board Computer Module
• Product: Modules
• Data Bus Width: 8 bit
• Processor Type: Rabbit 2000
• Sram: 128 KB
• Flash: 256 KB
• Timers: 8 bit, 10 bit
• Number Of I/os: 14
• Backup Battery: 3 V Lithium Coin Type
• Operating Voltage: 8 V to 40 V
• Power Consumption: 1.2 W
• Board Size: 89 mm x 64 mm x 19 mm
• Description/function: Computer Module
• For Use With/related Products: BL1800
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1079

As shown in Table A-3, pins PE4 and PE5 can instead be used as external INT0B and
INT1B interrupts. Pins PD6 and PD7 can instead be used to access Serial Port A on the
Rabbit 2000 microprocessor. Pins PB0 and PB1 can instead be used to access the clock on
Serial Port B and Serial Port A of the Rabbit 2000 microprocessor.
The four output-only pins are located on PB6–PB7, PCLK, and IOBEN. PB7 can also be
used with the slave port of the Rabbit 2000 microprocessor. The primary function of
PCLK is as a peripheral clock or a peripheral clock ÷ 2, but PCLK can instead be used as
a digital output. Similarly, IOBENB is an I/O buffer enable, but can instead be used as a
digital output. STAT and WDO also have limited uses as digital outputs.
User’s Manual
IOBEN
PCLK
WDO
STAT
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
Pin
Table A-3. Jackrabbit Pinout Configurations (continued)
Bitwise or parallel
programmable I/O,
can be driven or open-
drain output
Bitwise or parallel
programmable I/O
Peripheral clock
I/O buffer enable
Watchdog output
Status
Factory Default
Rabbit 2000
ATXB output
ARXB input
ATXA output
ARXA input
I0 output or INT0A input HV0 output control
I1 output or INT1A input HV1 output control
I2 output
I3 output
I4 output or external
INT0B input
I5 output or external
INT1B input
I6 output
I7 output or slave port
chip select /SCS
Output
Output
Single low pulse output
Output
Alternate Use
Connected to control
DA0
Connected to control
DA0
Connected to control
DA1
Connected to RS-485 IC
data enable input
HV2 output control
HV3 output control
Connected to A/D
comparator output
Connected to A/D
comparator output
Connected to
programming port
Jackrabbit Use
67