FUJITSU F2MC-8L F202RA - Manual (Page 75)

59
CHAPTER 3 CPU
■ Operations in Active Mode
In active (RUN) mode, the oscillator is generating a clock. The CPU, time-base timer, and other peripheral
circuits operate using the clock.
In active mode, all clock speeds except the time-base timer clock speed can be changed (using gears). In
active mode, specifying standby mode results in a transition to sleep mode or stop mode.
Operations always start in RUN mode after a reset (any type). (Operating modes are cancelled by a reset.)
Note:
Do not rewrite the values in the oscillation stabilization wait time selection bits (SYCC: WT1 and WT0)
while the clock is waiting for stabilization of oscillation. Using the system clock monitor bits, change
the values in these bits after checking that SYCC: SCM is "1".