Fujitsu F2MCTM-16LX Manual do Utilizador Página 205

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189
CHAPTER 11 TIMEBASE TIMER
At transition to the stop mode, the timebase timer counter is cleared to stop counting up. At return from the
stop mode, the timebase timer counts the oscillation stabilization wait time of the main clock.
Figure 11.5-2 Example of Operation for Timebase Timer
HCLK
3FFFFH
00000H
: Oscillation stabilization waiting time
: Oscillation clock
Cancellation of sleep at interval interrupt
of timebase timer
Counter value
Clear by transferring to
stop mode
Interval cycle
(TBTC: TBC1: TBC0 = 11
B
)
Start CPU
operation
Power-on reset
TBOF bit
TBIE bit
STP bit
(LPMCR register)
Stop
Clear by interrupt process
Sleep
SLP bit
(LPMCR register)
Counter clear
(TBTC: TBR = 0)
Oscillation
stabilization
waiting overflow
When set the interval time select bit (TBTC:TBC1, TBC0) to "11
B
"(2
19
/HCLK)
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