Chapter 13
Serial Interface
Control Registers XIII - 13
SCIFn (n = 0, 1) Mode Register 1 (SC0MD1, SC1MD1)
bp76543210
Bit name SCnIOM SCnSBTS SCnSBIS SCnSBOS SCnCKM SCnMST SCnDIV SCnCMD
Initial
value
00000000
Access R/W R/W R/W R/W R/W R/W R/W R/W
bp Bit name Description
7 SCnIOM
Data input pin selection
0: SBIn
1: SBOn
6 SCnSBTS
SBTn function control
0: Disable
1: Enable (Input or Output transfer clock)
5 SCnSBIS
SBIn function control
0: Disable ("1" fixed input)
1: Enable (Serial data input)
4 SCnSBOS
SBOn function control
0: Disable
1: Enable (Serial data output)
3 SCnCKM
BRTM output clock division control
0: Not divided
1: Divided
2SCnMST
Clock master/salve selection
0: Clock slave
1: Clock master
1 SCnDIV
Division ratio of BRTM output clock
0: Divided by 8
1: Divided by 16
0SCnCMD
Communication mode selection
0: Clock-Synchronous communication
1: UART communication