Renesas RL78/G1P Hardware User Manual page 414

RL78/G1P
Figure 11-73. Flowchart of SNOOZE Mode Operation (Continuous Startup)
<1>
<2>
<3>
<4>
<5>
<6>
<7>
<8>
<9>
<10>
Remarks 1. <1> to <10> in the figure correspond to <1> to <10> in Figure 11-72 Timing Chart of SNOOZE
Mode Operation (Continuous Startup).
2. m = 0; p = 00
R01UH0895EJ0100 Rev.1.00
Nov 29, 2019
SNOOZE operation
TSFmn = 0 for all channels?
Yes
Write STm0 bit to 1
SAU default setting
Setting SSCm register
(SWCm = 1, SSECm = 0)
Write SSm0 bit to 1
Enables interrupt processing
Entered the STOP mode
Reading receive data to
SIOp (=SDRmn[7:0])
Write STm0 bit to 1
Clear SWCm bit to 0
CHAPTER 11 SERIAL ARRAY UNIT
No
Become the operation STOP status (SEm0 = 0)
SMRm0, SCRm0 : Communication setting
SDRm0[15:9] : Setting 0000000B
Setting SNOOZE mode
Become the communication wait status (SEm0 = 1)
Clear interrupt request flag (XXIF), reset interrupt mask (XXMK)
and set interrupt enable (EI).
CPU/peripheral hardware clock f
stopped.
SCKp edge detected
(Entered the SNOOZE mode)
Supplying a clock to CSIp
(CSIp is receive operation)
Transfer interrupt (INTCSIp) is
generated
(CSIp is receive completion)
The mode switches from SNOOZE to normal operation.
Reset SNOOZE mode setting
supplied to the SAU is
CLK
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