Embux EBC2A0, User Manual

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15
2.3.2.2. JCOM1
Description Pin Pin Description
N/C 1 2 RS-232_RX
RS-232_TX 3 4
N/C
GND 5 6
N/C
N/C
7 8
N/C
N/C
9 10 N/C
2.3.2.3. JDC in
Description Pin
GND 1
5V 2
2.3.2.4. JEMBUX
Description Pin Pin Description
3.3V 2 1 5V
3.3V 4 3 5V
GPIO0 6 5 GND
GPIO1 8 7 MCU_SS
GPIO2 10 9 MCU_CLK
GPIO3 12 11 MCU_MOSI
GPIO4 14 13 MCU_MISO
GPIO5 16 15 GND
GPIO6 18 17 I2C CLK
N/C 20 19 I2C DAT
Remark:
GPIO pin control by MCU (level 3.3V)
MCU_SS: SPI Slave Select (active low, output from master)
MCU_CLK: SPI Serial Clock (output from master)
MCU_MOSI: SPI Master Output, Slave Input (output from master)
MCU_MISO: Master Input, Slave Output (output from slave)