SH7101 Datasheet, PDF (186/486 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

8. Multi-Function Timer Pulse Unit (MTU)
Example of PWM Mode Setting Procedure: Figure 8.20 shows an example of the PWM mode
setting procedure.
PWM mode
Select counter clock ^[1]
Select counter clearing [2]
source
Select waveform
[3]
output level
Set TGR
[4]
Set PWM mode
[5]
[1] Select the counter clock with bits TPSC2 to
TPSC0 in TCR. At the same time, select the
input clock edge with bits CKEG1 and
CKEG0 in TCR.
[2] Use bits CCLR2 to CCLR0 in TCR to select
the TGR to be used as the TCNT clearing
source.
[3] Use TIOR to designate the TGR as an output
compare register, and select the initial value
and output value.
[4] Set the cycle in the TGR selected in [2], and
set the duty in the other TGR.
[5] Select the PWM mode with bits MD3 to MD0
in TMDR.
[6] Set the CST bit in TSTR to 1 to start the
count operation.
Start count
[6]
<PWM mode>
Figure 8.20 Example of PWM Mode Setting Procedure
Rev.2.00 Sep. 27, 2007 Page 152 of 448
REJ09B0394-0200