HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 628

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 18 Multi-Function Timer Pulse Unit (MTU)
Example of PWM Mode Setting Procedure: Figure 18.20 shows an example of the PWM mode
setting procedure.
Examples of PWM Mode Operation: Figure 18.21 shows an example of PWM mode 1
operation.
In this example, TGRA compare match is set as the TCNT clearing source, 0 is set for the TGRA
initial output value and output value, and 1 is set as the TGRB output value.
In this case, the value set in TGRA is used as the period, and the values set in the TGRB registers
are used as the duty cycle.
Rev. 4.00 Sep. 14, 2005 Page 578 of 982
REJ09B0023-0400
TGRA
TGRB
H'0000
TIOCA
Select counter clearing
Select counter clock
TCNT value
Select waveform
Set PWM mode
<PWM mode>
PWM mode
output level
Start count
Set TGR
Figure 18.20 Example of PWM Mode Setting Procedure
source
Figure 18.21 Example of PWM Mode Operation (1)
[1]
[2]
[3]
[4]
[5]
[6]
Counter cleared by
TGRA compare match
[1]
[2]
[3]
[4]
[5]
[6]
in TCR. At the same time, select the input clock
edge with bits CKEG1 and CKEG0 in TCR.
TGR to be used as the TCNT clearing source.
compare register, and select the initial value and
output value.
duty in the other TGR.
TMDR.
operation.
Select the counter clock with bits TPSC2 to TPSC0
Use bits CCLR2 to CCLR0 in TCR to select the
Use TIOR to designate the TGR as an output
Set the cycle in the TGR selected in [2], and set the
Select the PWM mode with bits MD3 to MD0 in
Set the CST bit in TSTR to 1 to start the count
Time