HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 317

• Manufacturer Part Number: HD6417144
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Example of PWM Mode Setting Procedure: Figure 11.20 shows an example of the PWM mode
setting procedure.
Examples of PWM Mode Operation: Figure 11.21 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 levels.
TGRA
TGRB
H'0000
TIOCA
Select counter clearing
Select counter clock
Figure 11.20
Select waveform
TCNT value
Set PWM mode
<PWM mode>
PWM mode
Figure 11.21
output level
Start count
Set TGR
source
Example of PWM Mode Setting Procedure
[1]
[2]
[3]
[4]
[5]
[6]
Example of PWM Mode Operation (1)
Counter cleared by
TGRA compare match
[1] Select the counter clock with bits TPSC2 to
[2] Use bits CCLR2 to CCLR0 in TCR to select
[3] Use TIOR to designate the TGR as an output
[4] Set the cycle in the TGR selected in [2], and
[5] Select the PWM mode with bits MD3 to MD0
[6] Set the CST bit in TSTR to 1 to start the
TPSC0 in TCR. At the same time, select the
input clock edge with bits CKEG1 and
CKEG0 in TCR.
the TGR to be used as the TCNT clearing
source.
compare register, and select the initial value
and output value.
set the duty in the other TGR.
in TMDR.
count operation.
11.
Rev.4.00 Mar. 27, 2008 Page 273 of 882
Multi-Function Timer Pulse Unit (MTU)
REJ09B0108-0400
Time