UPD784938 Datasheet, PDF (242/733 Pages) NEC – 16-Bit Single-Chip Microcontrollers

CHAPTER 9 TIMER/EVENT COUNTER 0
(2) Rewriting compare registers (CR00, CR01)
The output level of the timer output (TOn: n = 0, 1) does not change even if the CR0n (n = 0, 1) value matches the timer
counter 0 (TM0) value more than once during one PWM output cycle.
Figure 9-20. Example of Compare Register (CR00) Rewrite
TM0
count value
FFFFH
T2
T1
FFFFH
T2
T1
T1
0H
CR00
T1
T2
TO0
CR00
rewrite
CR00 and TM0 values match, but TO0 does not change here.
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Preliminary User’s Manual U13987EJ1V0UM00