Fujitsu FR81S Manuale Utente
CHAPTER 5: CLOCK
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : CLOCK
FUJITSU SEMICONDUCTOR CONFIDENTIAL
76
5.4.7. Watch Mode and Timer Interrupt
Watch mode and timer interrupt are shown.
Watch mode stops the specific functions and all operations other than timer. (See "CHAPTER: POWER
CONSUMPTION CONTROL") The wake-up from the watch mode is enabled by using main/sub timer
interrupt or RTC interrupt. The example for switching of the watch mode in the setting of wake-up from the
sub timer is shown as follows.
Figure 5-6
Wake-up from the Watch Mode
Sub clock selection
Sub timer
Interrupt
Sub timer setting
Watch mode setting
Sub watch mode
Wakeup
Wakeup
OVF
MB91520 Series
MN705-00010-1v0-E
237