8-Bit Timer/Event Counter Square-Wave Output Ranges - NEC mPD780208 Subseries User Manual

(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 7-2. 8-Bit Timer/Event Counter Square-Wave Output Ranges
Minimum Pulse Width
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)
2 4 x 1/f
X
(6.4 µ s)
5
2 x 1/f
X
(12.8 µ s)
2 6 x 1/f
X
(25.6 µ s)
2 7 x 1/f
X
(51.2 µ s)
8
2 x 1/f
X
(102.4 µ s)
2 9 x 1/f
X
(204.8 µ s)
10
2 x 1/f
X
(819.2 µ s)
2 12 x 1/f
X
Remarks 1. f : Main system clock oscillation frequency
X
2. Figures in parentheses apply to operation with f
CHAPTER 7 8-BIT TIMER/EVENT COUNTER
Maximum Pulse Width
(102.4 µ s)
9
2 x 1/f
X
(204.8 µ s)
2 10 x 1/f
X
(409.6 µ s)
11
2 x 1/f
X
(819.2 µ s)
2 12 x 1/f
X
13
2 x 1/f (1.64 ms)
X
2 14 x 1/f (3.28 ms)
X
2 15 x 1/f (6.55 ms)
X
16
2 x 1/f (13.1 ms)
X
2 17 x 1/f (26.2 ms)
X
18
2 x 1/f (52.4 ms)
X
2 20 x 1/f (209.7 ms)
X
User's Manual U11302EJ4V0UM
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)
2 4 x 1/f
X
(6.4 µ s)
5
2 x 1/f
X
(12.8 µ s)
2 6 x 1/f
X
(25.6 µ s)
2 7 x 1/f
X
(51.2 µ s)
8
2 x 1/f
X
(102.4 µ s)
2 9 x 1/f
X
(204.8 µ s)
10
2 x 1/f
X
(819.2 µ s)
2 12 x 1/f
X
= 5.0 MHz.
X
Resolution
147