Renesas RL78 Series User Manual page 465

RL78/G1D
(2) Operation procedure
Setting the PER0 register
Setting the SPSm register
Setting the SMRmn register
Setting the SCRmn register
Setting the SDRmn register
Writing to the SSm register
(Selective)
(Essential)
(Essential)
(Selective)
R01UH0515EJ0120 Rev.1.20
Dec 16, 2016
Figure 13-57. Initial Setting Procedure for Slave Reception
Starting initial settings
Setting port
Completing initial setting
Figure 13-58. Procedure for Stopping Slave Reception
Starting setting to stop
TSFmn = 0?
Yes
Writing the STm register
Changing setting of the SOEm register
Setting the PER0 register
Stop setting is completed
CHAPTER 13 SERIAL ARRAY UNIT
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 baud rate setting (bits 15 to 9) to
0000000B.
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
(SEmn bit = 1: to enable operation). Wait for
a clock from the master.
If there is any data being transferred, wait for
No
their completion.
(If there is an urgent must stop, do not wait)
Write 1 to the STmn bit of the target channel.
(SEmn = 0: to operation stop status)
Set the SOEmn bit to 0 and stop the output of
the target channel.
Reset the serial array unit by stopping the
clock supply to it.
The master transmission is stopped.
Go to the next processing.
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