SH7261 datasheet(525/1348 Pages) RENESAS

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Section 12 Multi-Function Timer Pulse Unit 2 (MTU2)

Rev. 2.00 Sep. 07, 2007 Page 493 of 1312

REJ09B0320-0200

12.4.8

Complementary PWM Mode

In the complementary PWM mode, three-phase output of non-overlapping positive and negative

PWM waveforms can be obtained by combining channels 3 and 4. PWM waveforms without non-

overlapping interval is also available.

In complementary PWM mode, TIOC3B, TIOC3D, TIOC4A, TIOC4B, TIOC4C, and TIOC4D

pins function as PWM output pins, the TIOC3A pin can be set for toggle output synchronized with

the PWM period. TCNT_3 and TCNT_4 function as up/down counters.

Table 12.54 shows the PWM output pins used. Table 12.55 shows the settings of the registers

used.

Table 12.54 Output Pins for Complementary PWM Mode

Channel

Output Pin

Description

TIOC3A

Toggle output synchronized with PWM period (or I/O port)

TIOC3B

PWM output pin 1

TIOC3C

I/O port*

TIOC3D

PWM output pin 1'

(non-overlapping negative-phase waveform of PWM output 1;

PWM output without non-overlapping interval is also available)

TIOC4A

PWM output pin 2

TIOC4B

PWM output pin 3

TIOC4C

PWM output pin 2'

(non-overlapping negative-phase waveform of PWM output 2;

PWM output without non-overlapping interval is also available)

TIOC4D

PWM output pin 3'

(non-overlapping negative-phase waveform of PWM output 3;

PWM output without non-overlapping interval is also available)

Note:

Avoid setting the TIOC3C pin as a timer I/O pin in the complementary PWM mode.

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