16-Bit Timer/Event Counter Mode - NEC 78014Y Series User Manual

9.1.2 16-bit timer/event counter mode

(1) 16-bit interval timer
Interrupt requests can be generated at the preset time intervals.
Remarks 1. f
2. Values in parentheses apply to operation with f
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CHAPTER 9 8-BIT TIMER/EVENT COUNTER
Table 9-3. Interval Times when 8-Bit Timer/Event Counters
are Used as 16-Bit Timer/Event Counter
Minimum Interval Time
× 1/f
2
2 (400 ns)
X
× 1/f
2 3 (800 ns)
X
(1.6 µ s)
× 1/f
2 4
X
× 1/f (3.2 µ s)
5
2
X
× 1/f (6.4 µ s)
2 6
X
(12.8 µ s)
× 1/f
2 7
X
× 1/f (25.6 µ s)
8
2
X
× 1/f (51.2 µ s)
2 9
X
(102.4 µ s)
× 1/f
2 10
X
× 1/f (409.6 µ s)
12
2
X
: Main system clock oscillation frequency
X
Maximum Interval Time
× 1/f
18 2
2 (26.2 ms) 2
X
× 1/f
2 19 (52.4 ms) 2 3
X
× 1/f
2 20 (104.9 ms) 2 4
X
× 1/f
21 5
2 (209.7 ms) 2
X
× 1/f
2 22 (419.4 ms) 2 6
X
× 1/f
2 23 (838.9 ms) 2 7
X
× 1/f
24 8
2 (1.7 s) 2
X
× 1/f
2 25 (3.7 s) 2 9
X
× 1/f
2 26 (6.7 s) 2 10
X
× 1/f
28 12
2 (26.8 s) 2
X
= 10.0 MHz.
X
Resolution
× 1/f
(400 ns)
X
× 1/f
(800 ns)
X
(1.6 µ s)
× 1/f
X
× 1/f (3.2 µ s)
X
× 1/f (6.4 µ s)
X
(12.8 µ s)
× 1/f
X
× 1/f (25.6 µ s)
X
× 1/f (51.2 µ s)
X
(102.4 µ s)
× 1/f
X
× 1/f (409.6 µ s)
X