Serial peripheral interface (SPI) RM0008
718/1096 Doc ID 13902 Rev 12
Bit1 CPOL: Clock polarity
0: CK to 0 when idle
1: CK to 1 when idle
Note: This bit should not be changed when communication is ongoing.
Not used in I
2
S mode
Bit 0 CPHA: Clock phase
0: The first clock transition is the first data capture edge
1: The second clock transition is the first data capture edge
Note: This bit should not be changed when communication is ongoing.
Note: Not used in I
2
S mode
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