Datasheet

V850ES/JG3 CHAPTRER 8 16-BIT TIMER/EVENT COUNTER Q (TMQ)

R01UH0015EJ0300 Rev.3.00 Page 345 of 870

Sep 30, 2010

To transfer data from the TQ0CCRm register to the CCRm buffer register, the TQ0CCR1 register must be

written.

To change both the cycle and active level of the PWM waveform at this time, first set the cycle to the TQ0CCR0

to the TQ0CCR1 register.

To change only the active level width (duty factor) of PWM wave, first set the active level to the TQ0CCR2 and

TQ0CCR3 registers, and then set an active level to the TQ0CCR1 register.

To change only the active level width (duty factor) of the PWM waveform output by the TOQ01 pin, only the

TQ0CCR1 register has to be set.

To change only the active level width (duty factor) of the PWM waveform output by the TOQ02 and TOQ03 pins,

first set an active level width to the TQ0CCR2 and TQ0CCR3 registers, and then write the same value to the

TQ0CCR1 register.

After the TQ0CCR1 register is written, the value written to the TQ0CCRm register is transferred to the CCRm

buffer register in synchronization with the timing of clearing the 16-bit counter, and is used as a value to be

compared with the value of the 16-bit counter.

To change only the cycle of the PWM waveform, first set a cycle to the TQ0CCR0 register, and then write the

same value to the TQ0CCR1 register.

To write the TQ0CCR0 to TQ0CCR3 registers again after writing the TQ0CCR1 register once, do so after the

INTTQ0CC0 signal is generated. Otherwise, the value of the CCRm buffer register may become undefined

because the timing of transferring data from the TQ0CCRm register to the CCRm buffer register conflicts with

writing the TQ0CCRm register.

Remark m = 0 to 3