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Rev. 5.00, 09/03, page 538 of 760
Table 16.8 SCSCR Settings and SCIF Clock Source Selection
SCSCR Settings SCIF Transmit/Receive Clock
Mode
Bit 1
CKE1
Bit 0
CKE0 Clock Source SCK Pin Function
0 0 Internal SCIF does not use the SCK pin
1 Outputs a clock with a frequency 16 times
the bit rate
1 0 External
Asynchronous
mode
1
Inputs a clock with frequency 16 times the
bit rate
16.3.2 Serial Operation
Transmit/Receive Formats: Table 16.9 lists the eight communication formats that can be
selected. The format is selected by settings in the serial mode register (SCSMR).
Table 16.9 Serial Communication Formats
SCSMR Bits Serial Transmit/Receive Format and Frame Length
CHRPE STOP 1 2345678 9 10 11 12
0 0 0 START 8-bit data STOP
0 0 1 START 8-bit data STOP STOP
0 1 0 START 8-bit data P STOP
0 1 1 START 8-bit data P STOP STOP
1 0 0 START 7-bit data STOP
1 0 1 START 7-bit data STOP STOP
1 1 0 START 7-bit data P STOP
1 1 1 START 7-bit data P STOP STOP
START: Start bit
STOP: Stop bit
P: Parity bit