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CHAPTER 5 TIME-BASE TIMER
Figure 5.5-2 Operations of Time-base Timer
000000H
1FFFFFH
(TBTC:TBR=0)
Counter value
Cleared by switching to stop mode
Oscillation
stabilization
overflow
CPU
operation start
Interval cycle
(TBTC:TBC1,TBC0=11B)Counter clear
Power-on reset (optional)
Cleared by interrupt handling routine
TBOF bit
TBIE bit Sleep
SLP bit
(STBC register) Exit stop state by IRQ7 Stop
STP bit
(STBC register)
Exit stop state by an external interrupt
Note: When the interval time selection bits of time-base timer control register (TBTC : TBC1, TBC0)
are set to 11 (222/FCH).
: Oscillation stabilization time