RL78/F13, F14 CHAPTER 15 SERIAL ARRAY UNIT
R01UH0368EJ0210 Rev.2.10 964
Dec 10, 2015
Figure 15-123. Procedure for Stopping UART Transmission
Remarks 1. Even after communication is stopped, the pin level is retained. To resume the operation, re-set serial
output register m (SOm) (see Figure 15-124 Procedure for Resuming UART Transmission).
2. m: Unit number (m = 0, 1), n: Channel number (n = 0), mn = 00, 10
Starting setting to stop
Setting the STm register
Write 1 to the STmn bit of the target
channel.
Setting the SOEm register
Stopping communication
Stop communication in midway.
Set the SOEmn bit to 0 and stop the
output.