Reset-Synchronized Pwm Mode - Renesas RX100 Series User Manual

RX13T Group
19.3.7

Reset-Synchronized PWM Mode

In the reset-synchronized PWM mode, three phases of positive and negative PWM waveforms (six phases in total) that
share a common wave transition point can be output by combining MTU3 and MTU4.
When set for reset-synchronized PWM mode, the MTIOC3B, MTIOC3D, MTIOC4A, MTIOC4C, MTIOC4B, and
MTIOC4D pins function as PWM output pins and timer counter 3 (MTU3.TCNT) functions as an up-counter.
Table 19.56 shows the PWM output pins used. Table 19.57 shows the settings of the registers.
Table 19.56 Output Pins for Reset-Synchronized PWM Mode
Channel Output Pin
MTU3 MTIOC3B
MTIOC3D
MTU4 MTIOC4A
MTIOC4C
MTIOC4B
MTIOC4D
Table 19.57 Register Settings for Reset-Synchronized PWM Mode
Register Setting
MTU3.TCNT Initial setting (0000h)
MTU4.TCNT Initial setting (0000h)
MTU3.TGRA Set the count period for MTU3.TCNT
MTU3.TGRB Set the transition point of the PWM waveform to be output from the MTIOC3B and MTIOC3D pins
MTU4.TGRA Set the transition point of the PWM waveform to be output from the MTIOC4A and MTIOC4C pins
MTU4.TGRB Set the transition point of the PWM waveform to be output from the MTIOC4B and MTIOC4D pins
R01UH0822EJ0100 Rev.1.00
Jul 31, 2019
Description
PWM output pin 1
PWM output pin 1' (negative-phase waveform of PWM output 1)
PWM output pin 2
PWM output pin 2' (negative-phase waveform of PWM output 2)
PWM output pin 3
PWM output pin 3' (negative-phase waveform of PWM output 3)
19. Multi-Function Timer Pulse Unit 3 (MTU3c)
Page 420 of 1041