Use Of Rabbit 2000 Parallel Ports - Z-World BL1800 User Manual

A.4 Use of Rabbit 2000 Parallel Ports
Figure A-4 shows the use of the Rabbit 2000 parallel ports. The Jackrabbit has 27 general-
purpose digital inputs/outputs available on headers J4 and J5—15 are bidirectional (one of
which is used by the RS-485 chip on BL1800 and BL1810 models), seven are inputs only
(one of which is used by the RS-485 chip on BL1800 and BL1810 models), and five are
outputs only (one of which is used by the RS-485 chip on BL1800 and BL1810 models),
as shown in Figure A-4.
2x RS-232,
1x RS-485,
CMOS synch-
ronous serial
PCLK
IOBENB
User's Manual
PB0–
PA0–PA7
PB5
Port B
Port A
J
ACKRABBIT
Serial
Ports
RAM
Real-Time Clock
Watchdog
6 Timers
Misc. Outputs Slave Port
Clock Doubler
Backup Battery
Programming
Port
Figure A-4. Jackrabbit Subsystems
PB6 PD0, PD3,
PB7 PD6, PD7
Port D
Port E
Flash
D/A Converters
A/D Converter
High-Power Outputs
HV0–HV3
PE4–PE5
DA0
DA1
AD0
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