Cherry PUMA SOM-RK3399-Q7 User Manual page 39

5.4.8 GPIO
Signal Type
GPIO[0-7] I/O
5.4.9 CAN
Signal Type
CAN0_TX O
CAN0_RX I
5.4.10 SPI
Signal Type
SPI_MOSI O
SPI_MISO I
SPI_SCK O
SPI_CS0# O
SPI_CS1# O
5.4.11 UART
Signal Type
UART0_TX O
UART0_RX I
UART0_CTS# I
UART0_RTS# O
RK3399-Q7 User Manual
© Cherry Embedded Solutions GmbH
Signal Description
Level
3.3V General purpose inputs/outputs 0 to 7
Signal Description
Level
3.3V CAN (Controller Area Network) TX output for CAN Bus channel
0
3.3V CAN (Controller Area Network) RX input for CAN Bus channel 0
Signal Description
Level
3.3V Master serial output/Slave serial input signal
3.3V Master serial input/Slave serial output signal
3.3V SPI clock output
3.3V SPI chip select 0 output
3.3V SPI chip select 1 output (used when two devices are connected)
Signal Description
Level
3.3V Serial data transmit
3.3V Serial data receive
3.3V Handshake signal: ready to send data
3.3V Handshake signal: ready to receive data
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