44 Rabbit 2000 Development Kit
A.4 Use of Rabbit 2000 Parallel Ports
Figure A-3 shows the use of the Rabbit 2000 parallel ports. The BL1810 BL1810 has 24
general-purpose digital inputs/outputs available on headers J4 and J5—14 are bidirec-
tional, six are inputs only, and four are outputs only, as shown in Figure A-3.
Figure A-3. BL1810 Subsystems
JACKRABBIT
Port A
Port B
Port D
Port E
Serial
Ports
Programming
Port
PA0PA7
PB0
PB5
PB6
PB7
HV0HV3
2x RS-232,
1x RS-485,
CMOS synch-
ronous serial
PE4PE5
PD0, PD3,
PD6, PD7
DA0
DA1
AD0
PCLK
IOBENB
Watchdog
6 Timers
Backup Battery
Clock Doubler
Slave Port
Real-Time Clock
RAM
Flash
A/D Converter
High-Power Outputs
D/A Converters
Misc. Outputs