SPI (Serial Peripheral Interface Bus)
SPI (Serial Peripheral Interface Bus)SPI ??? . Master-Slave
Master Slave . 70MHz I2C .
SCLK : Serial Clock, Master ClockMOSI : Master Output Slave
Input. (Output from master)MISO : Master Input Slave Output.
(Output from slave)SS : Slave Select. Master Slave Active Low
.Single SPI
Master . Slave . Master SS Slave logic 0 Slave .(Active Low)
Master SLCK MOSI , MISO .(Full Duplex) , SLCK . SPI 8 12, 16 . SS
SS 0 Slave DataSheet . ()
() CPOL CPHA 4 .( .)
ModeCPOLCPHA000101210311Multi Slave
Typical SPI BUSDaisy-Chained SPI BUSTypical SPI Slave Slave
Master SS .Daisy-Chained SPI Master Slave SS , Shift register .SPI
Full duplex communication . (bit .) . .SPI Master . .( 4, Slave ) ,
.I2C ACK Master . http://mintnlatte.tistory.com/199 ( )
http://www.mct.net/faq/spi.htmlhttp://www.byteparadigm.com/applications/introduction-to-i2c-and-spi-protocols/?/article/AA-00255/22/Introduction-to-SPI-and-IC-protocols.htmlhttp://www.corelis.com/education/SPI_Tutorial.htm
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