Hitachi H8/3692 Manuel D’Utilisation
Rev. 1.0, 07/01, page 168 of 372
TCNT value
GRA
H'0000
FTIOB
Time
GRB
Duty 0%
Write to GRB
Write to GRB
TCNT value
GRA
H'0000
FTIOB
Time
GRB
Duty 100%
Write to GRB
Write to GRB
Output does not change when cycle register
and duty register compare matches occur
simultaneously.
and duty register compare matches occur
simultaneously.
TCNT value
GRA
H'0000
FTIOB
Time
GRB
Duty 100%
Write to GRB
Write to GRB
Write to GRB
Output does not change when cycle register
and duty register compare matches occur
simultaneously.
and duty register compare matches occur
simultaneously.
Duty 0%
Write to GRB
Figure 12-12 PWM Mode Example
(TOB=0, TOC=0, TOD=0: initial output values are set to 0)