HD64F38602R Datasheet, PDF (205/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 10 Timer W
Figures 10.12 and 10.13 show examples of the output of PWM waveforms with duty cycles of 0%
and 100%.
TCNT value
Write to GRB
GRA
GRB
H'0000
Write to GRB
Time
FTIOB
TCNT value
GRA
Write to GRB
GRB
H'0000
FTIOB
Duty 0%
Output does not change when cycle register
and duty register compare matches occur
simultaneously.
Write to GRB
Write to GRB
Duty 100%
Time
TCNT value
GRA
Write to GRB
Output does not change when cycle register
and duty register compare matches occur
simultaneously.
Write to GRB
GRB
H'0000
FTIOB
Duty 100%
Duty 0%
Write to GRB
Time
Figure 10.12 PWM Mode Example
(TOB, TOC, and TOD = 0: initial output values are set to 0)
Rev. 3.00 May 15, 2007 Page 173 of 518
REJ09B0152-0300