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RabbitCore RCM3200
B.5 Use of Rabbit 3000 Parallel Ports
Table B-2 lists the Rabbit 3000 parallel ports and their use for the RCM30/31/32XX
Prototyping Board.
Table B-2. RCM30/31/32XX Prototyping Board
Use of Rabbit 3000 Parallel Ports
Port
I/O
Use
Initial State
PA0–PA7
Output
Configurable external I/O bus
High when not driven
by I/O bus
PB0–PB1
Input
Not used
Pulled up on RCM3209/
RCM3229
PB2–PB5
Input
Configurable external I/O bus
High when not driven
by I/O bus
PB6–PB7
Output
Not used
Pulled up on RCM3209/
RCM3229
PC0
Output
Not used
High (disabled)
PC1
Input
Not used
Pulled up on RCM3209/
RCM3229
PC2
Output
TXC
Serial Port C
High (disabled)
PC3
Input
RXC
Pulled up on RCM3209/
RCM3229
PC4
Output
TXB
Serial Port B
High (disabled)
PC5
Input
RXB
Pulled up on RCM3209/
RCM3229
PC6
Output
TXA Programming Port
Serial Port A
High (disabled)
PC7
Input
RXA Programming Port
Pulled up on RCM3209/
RCM3229
PD0
Output
Ethernet RSTDRV
High
PD1
Input
Not used
Pulled up on RCM3209/
RCM3229
PD2–PD4
Output
Not used
High
PD5
Input
Not used
Pulled up on
Prototyping Board
PD6–PD7
Output
Not used
High
PE0–PE1
Output
Not used
High
PE2
Output
Ethernet chip select
High
PE3
Output
LCD device select
Low (disabled)
PE4
Output
IrDA speed select
Low (disabled)
Содержание RabbitCore RCM3209
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