RabbitCore RCM3305, User Manual

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98 RabbitCore RCM3305/RCM3315
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, Serial Flash SCLK
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, serial flash, J7
Serial Port D
High (disabled)
PC1 Input RXD SPI, 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
RCM3305 serial flash
Serial Port B
*
High (disabled)
PC5 Input RXB RCM3305 serial flash High (disabled)
PC6 Output TXA Programming Port
Serial Port A
High
PC7 Input RXA Programming Port High
PD0
†
Output RCM3305
USR
LED High
PD1
†
Output RCM3305 onboard serial flash select High (disabled)
PD2 Output SPI, serial flash, J7 Low (SPI disabled)
PD3 Output SPI, serial flash, J7 High (SPI CS disabled)
PD4–PD6 Input 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
PE6 Output LCD/keypad module High (disabled)
PE7 Output Motor driver B clock pulse High (disabled)