RL78/F13, F14 CHAPTER 15 SERIAL ARRAY UNIT
R01UH0368EJ0210 Rev.2.10 942
Dec 10, 2015
Figure 15-109. Procedure for Resuming Slave Reception
Remark m: Unit number (m = 0, 1), n: Channel number (n = 0, 1), mn = 00, 01, 10, 11
Starting setting for resumption
Port manipulation
Changing setting of the SPSm register
Changing setting of the SMRmn register
Port manipulation
Writing to the SSm register
Starting communication
Disable 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 serial mode
register mn (SMRmn) setting.
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 and
set the SEmn bit to 1 (to enable operation).
Wait for a clock from the master.
(Essential)
(Selective)
(Selective)
(Essential)
(Essential)
(Essential)
Re-set the register to change serial
communication operation setting register mn
(SCRmn) setting.
(Selective)
Changing setting of the SCRmn register
If the FEF, PEF, o
OVF flag remains set, clear
this using serial flag clear trigger register mn
(SIRmn).
(Selective)
Clearing error flag
Manipulating target for communication
Stop the target for communication or wait until
the target completes its operation.
(Essential)
Writing to the SSEm register
(Essential)
Set the SSEmn bit of the target channel to 1
and enable operation of slave select input
function.
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