RL78/G15 CHAPTER 15 STANDBY FUNCTION
R01UH0959EJ0110 Rev.1.10 Page 633 of 765
Mar 7, 2023
Figure 15-3. STOP Mode Release by Interrupt Request Generation (3/3)
(3) When high-speed system clock (external clock input) is used as CPU clock (16-pin and 20-pin products only)
Standby release
signal
Note 1
Supply of the clock
is stopped
Oscillates
Status of CPU
High-speed system clock
(external clock input)
Normal operation
(high-speed system
clock)
STOP mode
Oscillates
Normal operation
(high-speed system clock)
STOP instruction
Interrupt request
Wait
Oscillation stopped
STOP mode release time
Note 2
Note 1. For details of the standby release signal, see Figure 14-1 Basic Configuration of Interrupt Function.
Note 2. STOP mode release time: 27 μs
[Wait]
When vectored interrupt servicing is carried out: 8 clocks
When vectored interrupt servicing is not carried out: 2 clocks
Remark The broken lines indicate the case when the interrupt request that has released the standby mode is
acknowledged.
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