HD64F3039F18 Datasheet, PDF (271/710 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Series

Section 8 16-Bit Integrated Timer Unit (ITU)
Examples of PWM Mode
Figure 8.29 shows examples of operation in PWM mode. The PWM waveform is output from the
TIOCA pin. The output goes to 1 at compare match with GRA, and to 0 at compare match with
GRB.
In the examples shown, TCNT is cleared by compare match with GRA or GRB. Synchronized
operation and free-running counting are also possible.
TCNT value
GRA
Counter cleared by compare match with GRA
GRB
H'0000
Time
TIOCA
TCNT value
GRB
GRA
H'0000
a. Counter cleared by GRA
Counter cleared by compare match with GRB
Time
TIOCA
b. Counter cleared by GRB
Figure 8.29 PWM Mode (Example 1)
Rev.3.00 Mar. 26, 2007 Page 247 of 682
REJ09B0353-0300