Renesas SH7641 User Manual
Page 620
Section 18 Multi-Function Timer Pulse Unit (MTU)
Rev. 4.00 Sep. 14, 2005 Page 570 of 982
REJ09B0023-0400
Example of Synchronous Operation: Figure 18.12 shows an example of synchronous operation.
In this example, synchronous operation and PWM mode 1 have been designated for channels 0 to
2, TGRB_0 compare match has been set as the channel 0 counter clearing source, and
synchronous clearing has been set for the channel 1 and 2 counter clearing source.
Three-phase PWM waveforms are output from pins TIOC0A, TIOC1A, and TIOC2A. At this
time, synchronous presetting, and synchronous clearing by TGRB_0 compare match, are
performed for channel 0 to 2 TCNT counters, and the data set in TGRB_0 is used as the PWM
cycle.
For details of PWM modes, see section 18.4.5, PWM Modes.
TCNT0 to TCNT2
values
H'0000
TIOCA_0
TIOCA_1
TGRB_0
Synchronous clearing by TGRB_0 compare match
TGRA_2
TGRA_1
TGRB_2
TGRA_0
TGRB_1
TIOCA_2
Time
Figure 18.12 Example of Synchronous Operation