CHAPTER 19 STANDBY FUNCTION
User’s Manual U16899EJ2V0UD
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(2) STOP mode release
Figure 19-5. Operation Timing When STOP Mode Is Released
Ring-OSC clock is
selected as CPU clock
when STOP instruction
is executed
Ring-OSC clock
High-speed system
clock
High-speed system
clock is selected as CPU
clock when STOP
instruction is executed
STOP mode release
STOP mode
Operation stopped
(17/f
R
)
Clock switched
by software
Ring-OSC clock
High-speed system clock
HALT status
(oscillation stabilization time set by OSTS)
High-speed system clock
The STOP mode can be released by the following two sources.