RL78/F13, F14 CHAPTER 23 STANDBY FUNCTION
R01UH0368EJ0210 Rev.2.10 1530
Dec 10, 2015
23.3.2 STOP mode
(1) STOP mode setting and operating statuses
The STOP mode is set by executing the STOP instruction, and it can be set only when the CPU clock before the setting
was the high-speed on-chip oscillator clock, X1 clock, or external main system clock.
Caution Because the interrupt request signal is used to clear the STOP mode, if the interrupt mask flag is 0
(interrupt servicing enabled) and the interrupt request flag is 1 (interrupt request signal is generated),
the STOP mode is immediately cleared when the STOP instruction is executed. Accordingly, once the
STOP instruction is executed, the system returns to its normal operating mode after the elapse of
release time from the STOP mode.
The operating statuses in the STOP mode are shown below.