MC68HC08AZ16 Datasheet, PDF (217/527 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Serial Peripheral Interface Module (SPI)
CPHA is clear, the falling edge of SS starts a transmission. See
Transmission formats on page 217.
If the write to the data register is late, the SPI transmits the data already
in the shift register from the previous transmission.
NOTE: SPSCK must be in the proper idle state before the slave is enabled to
prevent SPSCK from appearing as a clock edge.
MC68HC08AZ32
216
Serial Peripheral Interface Module (SPI)
8-spi
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