Release the serial array unit from the reset status
and start clock supply.
Setting the PER0 register
Starting initial setting
Setting the SPSm register
Setting the SMRmn register
Setting the SCRmn register
Setting the SDRmn register
Changing setting of the SOLm register
Setting the SOm register
Changing setting of the SOEm register
Setting port
Completing initial setting
Set the operation clock.
Set an operation mode, etc.
Set a communication format.
Set a transfer baud rate (setting the transfer clock
by dividing the operation clock (f
MCK)).
Set an output data level.
Set the initial output level of the serial data
(SOmn).
Set the SOEmn bit to 1 and enable data output of
the target channel.
Enable data output 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).
Writing to the SSm register
Initial setting is completed.
Set transmit data to the SDRmn [7:0] bits and start communication.
Starting setting to stop
TSFmn = 0?
No
If there is any data being transferred, wait for their
completion.
(If there is an urgent must stop, do not wait.)
(Selective)
Write 1 to the STmn bit of the target channel .
(SEmn = 0: to operation stop status)
Writing the STm register
Setting the SOEm register
Set the SOEmn bit to 0 and stop the output of the
target channel.
(Essential)
(Essential)
The levels of the serial data (SOmn) on the target
channel can be changed if necessitated by an
emergency.
Changing setting of the SOm
register
(Selective)
Yes
Stop setting is completed
After the stop setting is completed, go to the next
processing.
Setting the PER0 register
Reset the serial array unit by stopping the clock
supply to it.
(Selective)
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