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CHAPTER 14 16-BIT RELOAD TIMER
14.1 Overview of 16-bit Reload Timer
■ Counter Operation Mode
●
Reload mode
When an underflow (0000
to continue the count operation. Interrupt request that can be generated at the underflow occurrence can be
also used as an interval timer. The toggle waveform which reverses at every underflow occurrence can be
also output from the TOT0 pin.
φ: Machine clock values in parentheses ( ) are when machine clock is in 24 MHz operating.
●
One-shot mode
When an underflow (0000
The interruption can be generated by the underflow. Short waveform which indicates the count operation
can be also output from the TOT0 pin during the count operation.
320
→ FFFF
H
Count Clock
Internal clock
External clock
→ FFFF
H
FUJITSU MICROELECTRONICS LIMITED
) occurs during the count down, the count setting value is reloaded
H
Count Clock Cycle
1
/ φ (0.083 μs)
2
3
/ φ (0.33 μs)
2
5
/ φ (1.33 μs)
2
3
/ φ (0.5 μs)
2
) occurs during the count down, the count operation is stopped.
H
MB90335 Series
Time of interval
0.083 μs to 5.461 ms
0.33 μs to 21.845 ms
1.33 μs to 87.38 ms
0.5 μs or more
CM44-10137-6E
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