參數(shù)資料
型號： 101-1226
廠商： Rabbit Semiconductor
文件頁數(shù)： 7/168頁
文件大?。?/td> 0K
描述： RCM3900 DEV KIT UNIVERSAL
標準包裝： 1
系列： RabbitCore 3900
類型： MPU 模塊
適用于相關產(chǎn)品： RCM3900
所含物品： RabbitCore 模塊、開發(fā)板、交流適配器、纜線和 Dynamic C? 光盤
其它名稱： 316-1137
RabbitCore RCM3900 User’s Manual
104
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
Active high
PA4
Data Bus
LCD/keypad module, motor driver,
relay and relay LED
Active high
PA5–PA7
Data Bus
LCD/keypad module, motor control
Active high
PB0
Input
CLKB, microSD Card
High
PB1
Input
CLKA, Programming Port
High
(when not driven by CLKA)
PB2–PB5
Address Bus
LCD/keypad module
High
PB6–PB7
Address Bus
—
High
PC0
Output
TXD
Serial Port D
High (disabled)
PC1
Input
RXD
High (disabled)
PC2
Output
TXC RS-485
Serial Port C
High (RS-485 disabled)
PC3
Input
RXC RS-485
High (RS-485 disabled)
PC4
Output
TXB, microSD Card
Serial Port B*
High (disabled)
PC5
Input
RXB, microSD Card
High (disabled)
PC6
Output
TXA, Programming Port
Serial Port A
High
PC7
Input
RXA, Programming Port
High
PD0
Output
RCM3900 BSY LED off
(shared with NAND flash busy)
High
PD1
Output
NAND flash chip enable
High (disabled)
PD2
Input
microSD Card card detect on
RCM3900/RCM3910
High when microSD
Card is installed
PD3
Output
—
High (SPI CS disabled)
PD4–PD6
Input
—
High (disabled)
PD7
Output
RS-485 Tx enable
Low (RS-485 Tx disabled)
PE0–PE1
Input
IN0–IN1, J6
High
PE2
Output
Ethernet AEN,
NAND flash function enable
High (disabled)
PE3
Output
Motor driver A clock pulse
Low (disabled)
PE4–PE5
Input
IN2–IN3, J6
High
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