SH7144 Datasheet, PDF (290/773 Pages) Renesas Technology Corp – Hitachi SuperH RISC engine

Figure 11.22 shows an example of PWM mode 2 operation.
In this example, synchronous operation is designated for channels 0 and 1, TGRB_1 compare
match is set as the TCNT clearing source, and 0 is set for the initial output value and 1 for the
output value of the other TGR registers (TGRA_0 to TGRD_0, TGRA_1), outputting a 5-phase
PWM waveform.
In this case, the value set in TGRB_1 is used as the cycle, and the values set in the other TGRs are
used as the duty levels.
TCNT value
TGRB_1
TGRA_1
TGRD_0
TGRC_0
TGRB_0
TGRA_0
H'0000
TIOC0A
Counter cleared by
TGRB_1 compare match
TIOC0B
TIOC0C
TIOC0D
TIOC1A
Figure 11.22 Example of PWM Mode Operation (2)
Time
Rev. 2.0, 09/02, page 250 of 732