Fujitsu MB90335 Series Hardware Manual page 199

CHAPTER 9 TIME-BASE TIMER
9.5 Operations of Time-base Timer
Table 9.5-1 Time-base Timer Counter Clearance Operation and Oscillation Stabilization Wait Time
Operation
Writing "0" to time-base timer
initialization bit (TBR) of time-base timer
control register (TBTC)
Power-on reset
Watchdog reset
Release of main stop mode
Release of PLL stop mode
Transition from main clock mode to PLL
clock mode (MCS=1 → 0)
Release of time-base timer mode
Release of sleep mode
❍
: Yes
×
: None
■ Function of Clock Supply
The time-base timer supplies clock to the watchdog timer. The clearance of time-base counter effects the
operation of watchdog timer.
178
Counter
TBOF
Clear
❍ ❍
❍ ❍
× ❍
❍ ❍
❍ ❍
❍ ❍
×
×
FUJITSU MICROELECTRONICS LIMITED
Oscillation Stabilization Wait Time
None
Main clock oscillation stabilization wait time
PLL clock oscillation stabilization wait time
×
None
×
None
MB90335 Series
CM44-10137-6E