SPI
SPI TYPE
①Standard SPI (full duplex)
SCLK: Serial Clock
MOSI: Master Output Slave Intput
MISO: Master Input Slave Output
SS : Slave Slecte
②Dual SPI (half duplex)
SCLK: Serial Clock
IO0 : Data Input/Output
IO1 : Data Input/Output
SS : Slave Select
➂Quad SPI (half duplex)
SCLK: Serial Clock
IO0 : Data Input/Output
IO1 : Data Input/Output
IO2 : Data Input/Output
IO3 : Data Input/Output
SS : Slave Select
SPI MODE
CPOL(Clock Polarity)
CPHA (Clock Phase)