HD6413007F20 Datasheet, PDF (360/798 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

9. 16-Bit Timer
the duty cycle is 0%. If the counter is cleared by compare match with GRA, and GRB is set to a
higher value than GRA, the duty cycle is 100%.
16TCNT value
GRB
Counter cleared by compare match B
GRA
H'0000
Time
TIOCA
16TCNT value
GRA
Write to GRA
Write to GRA
a. 0% duty cycle (TOA = 0)
Counter cleared by compare match A
GRB
H'0000
Time
TIOCA
Write to GRB
Write to GRB
b. 100% duty cycle (TOA = 1)
Figure 9.28 PWM Mode (Example 2)
Rev.5.00 Sep. 12, 2007 Page 330 of 764
REJ09B0396-0500