Question

SPI/SSI

a. Connections between microprocessor and peripheral

Clock Mode: Polarity and phase

Chip Selec

Answer 1

Answer :- The connection between MP and peripherals in Seririal Peripheral Interface(SPI) is done as shown below. The connection includes four wires. Those are-

SCLK - Serial Clock, for synchronization

MISO - Master In Slave Out, for slave to master data transfer

MOSI - Master Out Slave In, for master to slave data transfer

SS - Slave Select, logic low active line to select the slave

Here the master is the microprocessor-