20-101-1051 Datasheet, PDF (106/165 Pages) List of Unclassifed Manufacturers – C-Programmable Core Module with NAND Flash Mass Storage and Ethernet

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
PA0–PA3
PA4
PA5–PA7
PB0
PB1
PB2–PB5
PB6–PB7
PC0
PC1
PC2
PC3
PC4^*
PC5^*
PC6
PC7
PD0
PD1
PD2
PD3
PD4–PD6
PD7
PE0–PE1
PE2
PE3
PE4–PE5
PE6
I/O
Data Bus
Data Bus
Data Bus
Input
Input
Address Bus
Address Bus
Output
Input
Output
Input
Output
Input
Output
Input
Output
Output
Output
Output
Input
Output
Input
Output
Output
Input
Output
Use
Initial State
LCD/keypad module, motor driver, LEDs
Active high
LCD/keypad module, motor driver,
relay and relay LED
Active high
LCD/keypad module, motor control
Active high
CLKB, xD-Picture Card Detect
High
CLKA Programming Port
High
(when not driven by CLKA)
LCD/keypad module
High
—
High
TXD SPI, serial flash
RXD SPI, serial flash
Serial Port D
High (SPI disabled)
High (SPI disabled)
TXC RS-485
RXC RS-485
Serial Port C
High (RS-485 disabled)
High (RS-485 disabled)
TXB
RXB
Serial Port B
High (disabled)
High (disabled)
TXA Programming Port
Serial Port A
RXA Programming Port
High
High
RCM3365/RCM3375 USR LED off
(shared with NAND flash busy)
High
Soldered-in NAND flash chip enable
High (disabled)
SPI, serial flash
Low (SPI disabled)
SPI, serial flash
High (SPI CS disabled)
Serial flash
High (disabled)
RS-485 Tx enable
Low (RS-485 Tx disabled)
IN0–IN1
High
Ethernet AEN,
NAND flash function enable
High (disabled)
Motor driver A clock pulse
Low (disabled)
IN2–IN3, J8
High
LCD/keypad module
High (disabled)
100
RabbitCore RCM3365/RCM3375