RL78/G10 CHAPTER 12 SERIAL ARRAY UNIT
R01UH0384EJ0311 Rev. 3.11 348
Dec 22, 2016
(2) Operation procedure
Figure 12-55. Initial Setting Procedure for Slave Reception
Figure 12-56. Procedure for Stopping Slave Reception
Starting setting to stop
Stop setting is completed
Write 1 to the ST0n bit of the target channel.
(SE0n = 0 : to operation stop status)
The master transmission is stopped.
Go to the next processing.
Set the SOE0n bit to 0 and stop the output of
the target channel.
Writing to the ST0 register
Changing setting of the SOE0 register
TSF0n = 0?
If there is any data being transferred, wait for
their completion.
(If there is an urgent must stop, do not wait)
Yes
No
Reset the serial array unit by stopping the
clock supply to it.
Setting the PER0 register
(Essential)
(Selective)
(Essential)
(Selective)
Starting initial settings
Setting the PER0 register
Setting the SPS0 register
Setting the SMR0n register
Setting the SCR0n register
Setting the SDR0nH register
Setting port
Writing to the SS0 register
Completing initial setting
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 7 to 1) to
0000000B.
Enable data input and clock input of the
target channel by setting a port register
and a port mode register.
Set the SS0n bit of the target channel to 1
(SE0n bit = 1: to enable operation). Wait for
a clock from the master.
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