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SAM4L Datasheet, PDF (683/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU
ATSAM4L4/L2
CPOL is used to determine the inactive state value of the serial clock (SPCK). It is used with NCPHA to produce the required
clock/data relationship between master and slave devices.
42023C–SAM–02/2013
683