16-Bit Timer/Event Counter Interval Time; 16-Bit Timer/Event Counter Square-Wave Output Ranges - NEC mPD780208 Subseries User Manual

(1) Interval timer
TM0 generates interrupt requests at the preset time interval.
Minimum Interval Time
2 x TI0 input cycle
2 x 1/f (400 ns)
X
2
2 x 1/f (800 ns)
X
(1.6 µ s)
3
2 x 1/f
X
(3.2 µ s)
4
2 x 1/f
X
Remarks 1. f : Main system clock oscillation frequency
X
2. Figures in parentheses apply to operation with f
(2) PWM output
TM0 can generate 14-bit resolution PWM output.
(3) Pulse width measurement
TM0 can measure the pulse width of an externally input signal.
(4) External event counter
TM0 can measure the number of pulses of an externally input signal.
(5) Square-wave output
TM0 can output a square wave with any selected frequency.
Table 6-3. 16-Bit Timer/Event Counter Square-Wave Output Ranges
Minimum Pulse Width
2 x TI0 input cycle
2 x 1/f (400 ns)
X
2
2 x 1/f (800 ns)
X
(1.6 µ s)
3
2 x 1/f
X
(3.2 µ s)
4
2 x 1/f
X
Remarks 1. f : Main system clock oscillation frequency
X
2. Figures in parentheses apply to operation with f
CHAPTER 6 16-BIT TIMER/EVENT COUNTER
Table 6-2. 16-Bit Timer/Event Counter Interval Time
Maximum Interval Time
16
2 x TI0 input cycle
16
2 x 1/f (13.1 ms)
X
17
2 x 1/f (26.2 ms)
X
18
2 x 1/f (52.4 ms)
X
19
2 x 1/f (104.9 ms)
X
Maximum Pulse Width
16
2 x TI0 input cycle
16
2 x 1/f (13.1 ms)
X
17
2 x 1/f (26.2 ms)
X
18
2 x 1/f (52.4 ms)
X
19
2 x 1/f (104.9 ms)
X
User's Manual U11302EJ4V0UM
Resolution
TI0 input edge cycle
1/f (200 ns)
X
2 x 1/f (400 ns)
X
2
2 x 1/f (800 ns)
X
(1.6 µ s)
3
2 x 1/f
X
= 5.0 MHz.
X
Resolution
TI0 input edge cycle
1/f (200 ns)
X
2 x 1/f (400 ns)
X
2
2 x 1/f (800 ns)
X
(1.6 µ s)
3
2 x 1/f
X
= 5.0 MHz.
X
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