Renesas RL78 Series User Manual page 446

RL78/G1D
Figure 13-43. Procedure for Resuming Master Transmission/Reception
(Essential)
(Essential)
(Selective)
(Selective)
(Selective)
(Selective)
(Selective)
(Selective)
(Selective)
(Essential)
(Essential)
R01UH0515EJ0120 Rev.1.20
Dec 16, 2016
Starting setting for resumption
No
Completing slave
preparations?
Yes
Port manipulation
Changing setting of the SPSm register
Changing setting of the SDRmn register
Changing setting of the SMRmn register
Changing setting of the SCRmn register
Changing setting of the SOEm register
Changing setting of the SOm register
Changing setting of the SOEm register
Port manipulation
Writing to the SSm register
Completing resumption setting
CHAPTER 13 SERIAL ARRAY UNIT
Wait until stop the communication target
(slave) or communication operation
completed
Disable data output and clock output of
the target channel by setting a port
register and a port mode register.
Re-set the register to change the operation
clock setting.
Re-set the register to change the transfer
baud rate setting (setting the transfer
clock by dividing the operation clock
(f )).
MCK
Re-set the register to change serial
mode register mn (SMRmn) setting.
Re-set the register to change serial
communication operation setting register
mn (SCRmn) setting.
Set the SOEmn bit to 0 to stop output
from the target channel.
Set the initial output level of the serial
clock (CKOmn) and serial data (SOmn).
Set the SOEmn bit to 1 and enable
output from the target channel.
Enable data output and clock 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
(SEmn = 1 : to enable operation).
Sets transmit data to the SIOp register (bits
7 to 0 of the SDRmn register) and start
communication.
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