101-1226 Rabbit Semiconductor, 101-1226 Datasheet - Page 104

• Manufacturer Part Number: 101-1226
• Description: RCM3900 DEV KIT UNIVERSAL
• Manufacturer: Rabbit Semiconductor
• Series: RabbitCore 3900r
• Type: MPU Moduler

Specifications of 101-1226

• Contents: RabbitCore Module, Dev. Board, AC Adapter, Cable and Dynamic C® CD-Rom
• For Use With/related Products: RCM3900
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1137

B.6 Use of Rabbit 3000 Parallel Ports
Table B-5 lists the Rabbit 3000 parallel ports and their use for the Prototyping Board.
RabbitCore RCM3900 User’s Manual
PD4–PD6
PB2–PB5
PB6–PB7
PA0–PA3
PA5–PA7
PE0–PE1
PE4–PE5
PD0
PD1
PD2
Port
PE2
PD3
PD7
PA4
PB0
PB1
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PE3
†
†
†
‡
Table B-5. Prototyping Board Use of Rabbit 3000 Parallel Ports
Address Bus
Address Bus
Data Bus
Data Bus
Data Bus
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
I/O
LCD/keypad module
LCD/keypad module, motor driver, LEDs
LCD/keypad module, motor driver,
relay and relay LED
LCD/keypad module, motor control
CLKB, microSD™ Card
CLKA, Programming Port
—
TXD
RXD
TXC RS-485
RXC RS-485
TXB, microSD™ Card
RXB, microSD™ Card
TXA, Programming Port
RXA, Programming Port
RCM3900
(shared with NAND flash busy)
NAND flash chip enable
microSD™ Card card detect on
RCM3900/RCM3910
—
—
RS-485 Tx enable
IN0–IN1, J6
Ethernet AEN,
NAND flash function enable
Motor driver A clock pulse
IN2–IN3, J6
BSY
LED off
Use
Serial Port D
Serial Port C
Serial Port B
Serial Port A
*
Low (RS-485 Tx disabled)
(when not driven by CLKA)
High (RS-485 disabled)
High (RS-485 disabled)
High (SPI CS disabled)
High when microSD™
Card is installed
High (disabled)
High (disabled)
High (disabled)
High (disabled)
High (disabled)
High (disabled)
High (disabled)
Low (disabled)
Initial State
Active high
Active high
Active high
High
High
High
High
High
High
High
High
High
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