HD64F3687GHV Datasheet, PDF (281/566 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 13 Timer Z
2. Examples of Complementary PWM Mode Operation: Figure 13.31 shows an example of
complementary PWM mode operation. In complementary PWM mode, TCNT_0 and TCNT_1
perform an increment or decrement operation. When TCNT_0 and GRA_0 are compared and
their contents match, the counter is decremented, and when TCNT_1 underflows, the counter
is incremented. In GRA_0, GRA_1, and GRB_1, compare match is carried out in the order of
TCNT_0 → TCNT_1 → TCNT_1 → TCNT_0 and PWM waveform is output, during one
cycle of a up/down counter. In this mode, the initial setting will be TCNT_0 > TCNT_1.
TCNT values
GRA_0
GRB_0
GRA_1
GRB_1
H'0000
TCNT_0 and GRA_0 are compared and their contents match
Time
FTIOB0
FTIOD0
FTIOA1
FTIOC1
FTIOB1
FTIOD1
FTIOC0
Figure 13.31 Example of Complementary PWM Mode Operation (1)
Rev. 3.00 Sep. 10, 2007 Page 247 of 528
REJ09B0216-0300