NEC PD78F9488 - Manual (Page 156)

CHAPTER 7 8-BIT TIMERS 50, 60, AND 61
User’s Manual U15331EJ4V1UD
156
Figure 7-27. Operation Timing in PWM Output Mode (When Both Edges Are Selected)
(1) CR50 = Even number
Count clock
CR50
TCE50
INTTM50
TO50
2N
TM50 2N 00H 00H 01H FFH FFH 2N 02H FEH 01H 02H FEH
Overflow Overflow
Count start
(2) When CR50 = Odd number
Count clock
CR50
TCE50
INTTM50
TO50
2N + 1
TM50 2N + 1 00H 00H 01H FFH FFH 2N + 1 01H 01H 00H
Overflow Overflow Overflow
Count start
Caution When both edges are selected, do not set CR50 to 00H, 01H, and FFH. If CR50 is set to these
values, PWM output may not be performed normally.
Remark N = 00H to FFH