Rabbit RCM3200 Manuel d'utilisateur Page 86

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80 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 RCM3200
PB2–PB5 Input Configurable external I/O bus
High when not driven
by I/O bus
PB6–PB7 Output Not used
Pulled up on RCM3200
PC0 Output Not used High (disabled)
PC1 Input Not used
Pulled up on RCM3200
PC2 Output TXC
Serial Port C
High (disabled)
PC3 Input RXC
Pulled up on RCM3200
PC4 Output TXB
Serial Port B
High (disabled)
PC5 Input RXB Pulled up on RCM3200
PC6 Output TXA Programming Port
Serial Port A
High (disabled)
PC7 Input RXA Programming Port Pulled up on RCM3200
PD0 Output Ethernet RSTDRV High
PD1 Input Not used Pulled up on RCM3200
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)
PE5 Output Not used
High
PE6 Output External I/O strobe High (disabled)
PE7 Output Not used High (disabled)
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