MC68HC705C8A Datasheet, PDF (150/222 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Serial Peripheral Interface (SPI)
MODF — Mode Fault Bit
This clearable, read-only bit is set when a logic 0 occurs on the
PD5/SS pin while the MSTR bit is set. MODF generates an interrupt
request if the SPIE bit is also set. Clear the MODF bit by reading the
SPSR with MODF set and then writing to the SPCR. Reset clears
MODF.
1 = PD5/SS pulled low while MSTR bit set
0 = PD5/SS not pulled low while MSTR bit set
Technical Data
150
Serial Peripheral Interface (SPI)
MC68HC705C8A — Rev. 2.0
MOTOROLA