r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 400

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 10 Multi-Function Timer Pulse Unit 2 (MTU2)
9. Initial Output in Complementary PWM Mode
Rev. 1.00 Sep. 21, 2007 Page 374 of 1124
REJ09B0402-0100
Negative phase
Positive phase
In complementary PWM mode, the initial output is determined by the setting of bits OLSN
and OLSP in timer output control register 1 (TOCR1) or bits OLS1N to OLS3N and OLS1P to
OLS3P in timer output control register 2 (TOCR2).
This initial output is the PWM pulse non-active level, and is output from when complementary
PWM mode is set with the timer mode register (TMDR) until TCNT_4 exceeds the value set
in the dead time register (TDDR). Figure 10.44 shows an example of the initial output in
complementary PWM mode.
An example of the waveform when the initial PWM duty value is smaller than the TDDR
value is shown in figure 10.45.
output
output
Figure 10.44 Example of Initial Output in Complementary PWM Mode (1)
Timer output control register settings
OLSN bit: 0 (initial output: high; active level: low)
OLSP bit: 0 (initial output: high; active level: low)
Complementary
PWM mode
(TMDR setting)
Initial output
TGRA_4
TCNT_3 and TCNT_4 values
TDDR
TCNT_3 and TCNT_4 count start
(TSTR setting)
Active level
Dead time
TCNT_3
TCNT_4
Active level
Time