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RL78/G1P
CHAPTER 16 STANDBY FUNCTION
R01UH0895EJ0100 Rev.1.00
604
Nov 29, 2019
(b) Release by reset signal generation
When the reset signal is generated, STOP mode is released, and then, as in the case with a normal reset
operation, the program is executed after branching to the reset vector address.
Figure 16-6. STOP Mode Release by Reset
(1) When high-speed system clock is used as CPU clock
STOP
instruction
Reset signal
High-speed
system clock
(X1 oscillation)
Normal operation
(high-speed
system clock)
STOP mode
Reset
period
Normal operation
(high-speed on-chip
oscillator clock)
Oscillates
Oscillation
stopped
Oscillates
Status of CPU
Oscillation stabilization time
(Check by using OSTC register)
Oscillation
stopped
Oscillation stopped
Note
Starting X1 oscillation is
specified by software.
(2) When high-speed on-chip oscillator clock is used as CPU clock
STOP
instruction
Reset signal
High-speed on-chip
oscillator clock
Normal operation
(high-speed on-chip
oscillator clock)
STOP mode
Reset
period
Normal operation
(high-speed on-chip
oscillator clock)
Oscillates
Oscillation
stopped
Status of CPU
Oscillates
Oscillation stopped
Wait for oscillation
accuracy stabilization
Note
Note
For the reset processing time, see
CHAPTER 17 RESET FUNCTION.
For the reset processing time of the power-on-reset circuit (POR) and voltage detector (LVD), see
CHAPTER 18 POWER-ON-RESET CIRCUIT.