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 selec ted by settings in th e 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