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Distributor of Digi International: Excellent Integrated System Limited
Datasheet of 20-101-1194 - MODULE RABBITCORE RCM3309 ROHS
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100
RabbitCore RCM3309/RCM3319
B.6 Use of Rabbit 3000 Parallel Ports
Table B-5 lists the Rabbit 3000 parallel ports and their use for the Prototyping Board.
Table B-5. Prototyping Board Use of Rabbit 3000 Parallel Ports
Port
I/O
Use
Initial State
PA0–PA3
Data Bus
LCD/keypad module, motor driver, LEDs, J7
Active high
PA4
Data Bus
LCD/keypad module, motor driver, relay, J7
Active high
PA5–PA7
Data Bus
LCD/keypad module, motor control, J7
Active high
PB0
Input
CLKB, RCM3309/RCM3319 serial flash
High
PB1
Input
CLKA, Programming Port
High
(when not driven by CLKA)
PB2–PB5
Address Bus
LCD/keypad module, J6
High
PB6–PB7
Address Bus
J6
High
PC0
Output
TXD SPI, , SF1000
serial flash, J7
Serial Port D
High (disabled)
PC1
Input
RXD SPI, , SF1000
serial flash, J7
High (disabled)
PC2
Output
TXC RS-485 J7
Serial Port C
High (disabled)
PC3
Input
RXC RS-485 J7
High (disabled)
PC4
Output
TXB
RCM3309/RCM3319
serial flash
Serial Port B
*
High (disabled)
PC5
Input
RXB
RCM3309/RCM3319
serial flash
High (disabled)
PC6
Output
TXA, Programming Port
Serial Port A
High
PC7
Input
RXA, Programming Port
High
PD0
†
Output
RCM3309
BSY
LED
High
PD1
†
Output
RCM3309 onboard serial flash select
High (disabled)
PD2
Output
SPI, SF1000 serial flash, J7
Low (SPI disabled)
PD3
Output
SPI, SF1000 serial flash, J7
High (SPI CS disabled)
PD4–PD6
Input
SF1000 serial flash, J7
High (disabled)
PD7
Output
RS-485 Tx enable
Low (disabled)
PE0–PE1
Input
IN0–IN1, J6
High
PE2
†
Output
Ethernet AEN
Low (disabled)
PE3
Output
Motor driver A clock pulse
Low (disabled)
PE4–PE5
Input
IN2–IN3, J6
High
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