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Renesas SH7641 User Manual

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Section 18 Multi-Function Timer Pulse Unit (MTU)

Rev. 4.00 Sep. 14, 2005 Page 579 of 982

REJ09B0023-0400

Figure 18.22 shows an example of PWM mode 2 operation.

In this example, synchronous operation is designated for channels 0 and 1, TGRB_1 compare
match is set as the TCNT clearing source, and 0 is set for the initial output value and 1 for the
output value of the other TGR registers (TGRA_0 to TGRD_0, TGRA_1), outputting a 5-phase
PWM waveform.

In this case, the value set in TGRB_1 is used as the cycle, and the values set in the other TGRs are
used as the duty levels.

TCNT value

TGRB_1

H'0000

TIOC0A

Counter cleared by
TGRB_1 compare match

Time

TGRA_1
TGRD_0
TGRC_0
TGRB_0
TGRA_0

TIOC0B

TIOC0C

TIOC0D

TIOC1A

Figure 18.22 Example of PWM Mode Operation (2)

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