HD64F7047 datasheet(262/764 Pages) RENESAS

262 / 764 page

Rev. 2.00, 09/04, page 222 of 720

10.4.8

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.

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 increment/decrement counters.

Table 10.39 shows the PWM output pins used. Table 10.40 shows the settings of the registers

used.

A function to directly cut off the PWM output by using an external signal is supported as a port

function.

Table 10.39 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)

TIOC4A

PWM output pin 2

TIOC4B

PWM output pin 3

TIOC4C

PWM output pin 2' (non-overlapping negative-phase

waveform of PWM output 2)

TIOC4D

PWM output pin 3' (non-overlapping negative-phase

waveform of PWM output 3)

Note:

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

HD64F7047 Datasheet(PDF) 262 Page - Renesas Technology Corp