Sleep Mode - Fujitsu F2MC-8FX Hardware Manual

CHAPTER 6 CLOCK CONTROLLER
6.8.2

Sleep Mode

Sleep mode stops the operations of the CPU and watchdog timer.
Operations in Sleep Mode
Sleep mode stops the operating clock for the CPU and watchdog timer. In this mode, the CPU stops while
retaining the contents of registers and RAM that exist immediately before the transition to sleep mode, but
the peripheral resources except the watchdog timer continue operating.
Transition to sleep mode
Writing "1" to the sleep bit in the standby control register (STBC:SLP) causes the device to enter sleep
mode.
Cancellation of sleep mode
A reset or an interrupt from a peripheral resource releases the device from sleep mode.
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