HD6433682 ETC, HD6433682 Datasheet - Page 230

• Manufacturer Part Number: HD6433682
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series
• Manufacturer: ETC

For details on PWM mode, see section 13.4.5, PWM Mode.
13.4.5
In PWM mode, PWM waveforms are output from the FTIOB, FTIOC, and FTIOD output pins
with GRA as a cycle register and GRB, GRC, and GRD as duty registers. The initial output level
of the corresponding pin depends on the setting values of TOCR and POCR. Table 13.3 shows an
example of the initial output level of the FTIOB0 pin.
The output level is determined by the POLB to POLD bits corresponding to POCR. When POLB
is 0, the FTIOB output pin is set to 0 by compare match B and set to 1 by compare match A.
When POLB is 1, the FTIOB output pin is set to 1 by compare match B and cleared to 0 by
compare match A. In PWM mode, maximum 6-phase PWM outputs are possible.
Figure 13.21 shows an example of the PWM mode setting procedure.
Rev. 3.00, 05/03, page 200 of 472
PWM Mode
GRA_0
GRA_1
GRB_0
GRB_1
H'0000
FTIOB0
FTIOB1
TCNT values
Figure 13.20 Example of Synchronous Operation
Synchronous clearing by GRA_0 compare match
Time