UPD784938 Datasheet, PDF (216/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 9 TIMER/EVENT COUNTER 0
(2) Programmable square-wave output
Outputs square waves independently to the timer output pins (TO0, TO1).
Table 9-2. Timer/Event Counter 0 Programmable Square-Wave Output Setting Range
Minimum Pulse Width Maximum Pulse Width
4/fXX
(0.32 µs)
2¹⁶ × 4/fXX
(20.8 ms)
8/fXX
(0.64 µs)
2¹⁶ × 8/fXX
(41.7 ms)
16/fXX
(1.27 µs)
2¹⁶ × 16/fXX
(83.4 ms)
32/fXX
(2.54 µs)
2¹⁶ × 32/fXX
(167 ms)
64/fXX
(5.09 µs)
2¹⁶ × 64/fXX
(333 ms)
128/fXX
(10.17 µs)
2¹⁶ × 128/fXX
(667 ms)
256/fXX
(20.35 µs)
2¹⁶ × 256/fXX
(1.33 s)
512/fXX
(40.70 µs)
2¹⁶ × 512/fXX
(2.67 s)
1,024/fXX
(81.40 µs)
2¹⁶ × 1,024/fXX
(5.33 s)
( ): When fXX = 12.58 MHz
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Preliminary User’s Manual U13987EJ1V0UM00