Panasonic MN101C00 - Manual (Page 114)

Chapter 5 Serial Functions
100
When serial interface 0 is used for simultaneous transmission and reception, set the
SCnCE0 and SCnCE1 flags of the SCnMD0 register to "00" or "01", so that the
reception data input edge is opposite in polarity to the transmit data output edge.
Also, the polarity of the reception data input edge is opposite polarity of the
transmit data output edge of the other device.
Figure 5-2-5 Synchronous Serial Transmit/Receive Timing
(data is received at the rising edge and transmitted at the falling edge)
Figure 5-2-6 Synchronous Serial Transmit/Receive Timing
(data is received at the falling edge and transmitted at the rising edge)
Synchronous Serial Interface
SBT0
SBI0
SBO0
Data is input in synchronization with the rising edge of the clock.
Data is output in synchronization with the falling edge of the clock.
SBT0
SBI0
SBO0
Data is input in synchronization with the falling edge of the clock.
Data is output in synchronization with the rising edge of the clock.