Chapter 16 Serial Peripheral Interface (S12SPIV4)
MC9S12XDP512 Data Sheet, Rev. 2.11
722 Freescale Semiconductor
Figure 16-8. Reception with SPIF Serviced in TimeFigure 16-9. Reception with SPIF Serviced too Late
Receive Shift Register
SPIF
SPI Data Register
Data A Data B
Data A
Data A Received Data B Received
Data C
Data C
SPIF Serviced
Data C Received
Data B
= Unspecified = Reception in progress
Receive Shift Register
SPIF
SPI Data Register
Data A Data B
Data A
Data A Received Data B Received
Data C
Data C
SPIF Serviced
Data C Received
Data B Lost
= Unspecified = Reception in progress