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CHAPTER 15 STANDBY FUNCTION
User’s Manual U15104EJ2V0UD
Remark
The broken lines indicate the case when the interrupt request that released the standby status
is acknowledged.
(2) STOP mode release
The STOP mode can be released by the following two types of sources.
(a) Release by unmasked interrupt request
When an unmasked interrupt request is generated, the STOP mode is released. If interrupt request
acknowledgement is enabled after the lapse of oscillation stabilization time, vectored interrupt servicing
is carried out. If interrupt request acknowledgement is disabled, the next address instruction is executed.
Figure 15-4. STOP Mode Release by Interrupt Request Generation
STOP
instruction
Wait
(Time set by OSTS)
Oscillation stabilization
wait status
Operation
mode
Oscillation
Operation
mode
STOP mode
Oscillation stop
Oscillation
Standby
release signal
Clock
Interrupt
request