Rabbit Smartcat - Use of Rabbit 2000 Parallel Ports

User’s Manual 69
A.4 Use of Rabbit 2000 Parallel Ports
Figure A-6 shows the Rabbit 2000 parallel ports.
Figure A-6. BL2100 Rabbit-Based Subsystems
Table A-3 lists the Rabbit 2000 parallel ports and their use in the BL2100.
Table A-3. Use of Rabbit 2000 Parallel Ports
Port I/O Signal Output Function State
PA0 Input IN16
Pulled up
PA1 Input IN17
Pulled up
PA2 Input IN18
Pulled up
PA3 Input IN19
Pulled up
PA4 Input IN20
Pulled up
PA5 Input IN21
Pulled up
PA6 Input IN22
Pulled up
PA7 Input IN23
Pulled up
PB0 Input DAC_ADC_SDO
Pulled up
PB1 Input Not Used
Pulled up
PB2 Input ADC_EOC Driven by A/D converter
PB3 Input Not Used
Pulled up
RABBIT
2000
Port A
Port B
(+synch Serial Port B)
Port D
(+Serial Port B)
Port E
PA0PA7
PB0, PB2,
PB4, PB5 PB7
PE0PE1,
PE7
PD0PD1,
PD5
A0A3
IORD
IOWR
D0D7
/RESET
Data Lines
Address Lines
I/O Control
Watchdog
7 Timers
Clock Doubler
Slave Port
Real-Time Clock
RAM
Backup Battery
Support
Flash
Port C
(+Serial Ports C & D)
Programming
Port
(Serial Port A)
Ethernet
Port
Misc. I/O
4 Ethernet signals
2 LED outputs
PC6 + 1 more output
PB1, PC7, RES_IN
+ 2 more inputs
PC0, PC2
PC1, PC3
PD3PD4
PE4PE5