Typical Connection
MISO
MOSI
MISO
MOSI
Master
Slave
SPICLK
Port Pin
SPICLK
SS
SPI single master single slave configurartion
MISO
MOSI
MISO
MOSI
Master/Slave
Slave/Master
SPICLK
SS
SPICLK
SS
SPI dual device configuarion, where either can be a master or a slave
MISO
MOSI
MISO
MOSI
Slave #1
SPICLK
SPICLK
SS
Port Pin 1
Master
MISO
MOSI
Slave #2
SPICLK
SS
Port Pin 2
SPI single master multiple slaves configurartion
50
MPC82x54A Data Sheet
MEGAWIN