81
CHAPTER 6 8-BIT TIMER/EVENT COUNTERS 5 AND 6
(2) External event counter
The number of pulses of an externally input signal can be measured.
(3) Square-wave output
A square wave with any selected frequency can be output.
Table 6-3. 8-Bit Timer/Event Counters 5 and 6 Square-Wave Output Ranges
Minimum pulse width
Maximum pulse width
Resolution
MCS = 1
MCS = 0
MCS = 1
MCS = 0
MCS = 1
MCS = 0
—
1/f
X
—
2
8
×
1/f
X
—
1/f
X
(200 ns)
(51.2
µ
s)
(200 ns)
1/f
X
2
×
1/f
X
2
8
×
1/f
X
2
9
×
1/f
X
1/f
X
2
×
1/f
X
(200 ns)
(400 ns)
(51.2
µ
s)
(102.4
µ
s)
(200 ns)
(400 ns)
2
×
1/f
X
2
2
×
1/f
X
2
9
×
1/f
X
2
10
×
1/f
X
2
×
1/f
X
2
2
×
1/f
X
(400 ns)
(800 ns)
(102.4
µ
s)
(204.8
µ
s)
(400 ns)
(800 ns)
2
2
×
1/f
X
2
3
×
1/f
X
2
10
×
1/f
X
2
11
×
1/f
X
2
2
×
1/f
X
2
3
×
1/f
X
(800 ns)
(1.6
µ
s)
(204.8
µ
s)
(409.6
µ
s)
(800 ns)
(1.6
µ
s)
2
3
×
1/f
X
2
4
×
1/f
X
2
11
×
1/f
X
2
12
×
1/f
X
2
3
×
1/f
X
2
4
×
1/f
X
(1.6
µ
s)
(3.2
µ
s)
(409.6
µ
s)
(819.2
µ
s)
(1.6
µ
s)
(3.2
µ
s)
2
4
×
1/f
X
2
5
×
1/f
X
2
12
×
1/f
X
2
13
×
1/f
X
2
4
×
1/f
X
2
5
×
1/f
X
(3.2
µ
s)
(6.4
µ
s)
(819.2
µ
s)
(1.64 ms)
(3.2
µ
s)
(6.4
µ
s)
2
5
×
1/f
X
2
6
×
1/f
X
2
13
×
1/f
X
2
14
×
1/f
X
2
5
×
1/f
X
2
6
×
1/f
X
(6.4
µ
s)
(12.8
µ
s)
(1.64 ms)
(3.28 ms)
(6.4
µ
s)
(12.8
µ
s)
2
6
×
1/f
X
2
7
×
1/f
X
2
14
×
1/f
X
2
15
×
1/f
X
2
6
×
1/f
X
2
7
×
1/f
X
(12.8
µ
s)
(25.6
µ
s)
(3.28 ms)
(6.55 ms)
(12.8
µ
s)
(25.6
µ
s)
2
7
×
1/f
X
2
8
×
1/f
X
2
15
×
1/f
X
2
16
×
1/f
X
2
7
×
1/f
X
2
8
×
1/f
X
(25.6
µ
s)
(51.2
µ
s)
(6.55 ms)
(13.1 ms)
(25.6
µ
s)
(51.2
µ
s)
2
8
×
1/f
X
2
9
×
1/f
X
2
16
×
1/f
X
2
17
×
1/f
X
2
8
×
1/f
X
2
9
×
1/f
X
(51.2
µ
s)
(102.4
µ
s)
(13.1 ms)
(26.2 ms)
(51.2
µ
s)
(102.4
µ
s)
2
9
×
1/f
X
2
10
×
1/f
X
2
17
×
1/f
X
2
18
×
1/f
X
2
9
×
1/f
X
2
10
×
1/f
X
(102.4
µ
s)
(204.8
µ
s)
(26.2 ms)
(52.4 ms)
(102.4
µ
s)
(204.8
µ
s)
2
11
×
1/f
X
2
12
×
1/f
X
2
19
×
1/f
X
2
20
×
1/f
X
2
11
×
1/f
X
2
12
×
1/f
X
(409.6
µ
s)
(819.2
µ
s)
(104.9 ms)
(209.7 ms)
(409.6
µ
s)
(819.2
µ
s)
Remarks 1. f
X
: Main system clock oscillation frequency
2. MCS : Oscillation mode selection register (OSMS) bit 0
3. Values in parentheses when operated at f
X
= 5.0 MHz.
(4) PWM Output
TM5 and TM6 can generate 8-bit resolution PWM output.
Содержание NEC PD78081(A)
Страница 23: ...xii MEMO...
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Страница 47: ...24 CHAPTER 2 PIN FUNCTION MEMO...
Страница 91: ...68 CHAPTER 4 PORT FUNCTIONS MEMO...
Страница 125: ...102 CHAPTER 6 8 BIT TIMER EVENT COUNTERS 5 AND 6 MEMO...
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