RL78/G13 CHAPTER 12 SERIAL ARRAY UNIT
R01UH0146EJ0100 Rev.1.00 617
Sep 22, 2011
(2) Operation procedure
Figure 12-59. Initial Setting Procedure for Slave Reception
Figure 12-60. Procedure for Stopping Slave Reception
Starting initial settings
Setting the PER0 register
Setting the SPSm register
Setting the SMRmn register
Setting the SCRmn register
Setting the SDRmn register
Setting port
Writing to the SSm register
Starting communication
Release the serial array unit from the
reset status and start clock supply.
Set the operation clock.
Set an operation mode, etc.
Set a communication format.
Set bits 15 to 9 to 0000000B for baud
rate setting.
Enable data input and clock input of the
target channel by setting a port register
and a port mode register.
Set the SSmn bit of the target channel to 1
and set the SEmn bit to 1 (to enable
operation).
Wait for a clock from the master.
Starting setting to stop
Setting the STm register
Stopping communication
Write 1 to the STmn bit of the target
channel.
Stop communication in midway.
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