413
CHAPTER 20 STANDBY FUNCTION
User’s Manual U15798EJ2V0UD
(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 acknowledge
is enabled after the lapse of oscillation stabilization time, vectored interrupt service is carried out. If interrupt
acknowledge is disabled, the next address instruction is executed.
Figure 20-4. STOP Mode Release by Interrupt Request Generation
STOP instruction
Wait
(Time set by OSTS)
Oscillation stabilization
wait status
Operation mode
STOP mode
Operation mode
Oscillation
Clock
Standby release
signal
Oscillation stop
Oscillation
Interrupt
request
Remark
The broken lines indicate the case when the interrupt request which has cleared the standby status
is acknowledged.
Содержание mPD780344 Series
Страница 2: ...2 User s Manual U15798EJ2V0UD MEMO...