Abov MC97F60128, User Manual, Page: 185 / 382

185
MC97F60128 ABOV Semiconductor Co., Ltd.
Figure 11.29 Example of PWM at 4 MHz
Figure 11.30 Example of Changing the Period in Absolute Duty Cycle at 4 MHz
T4CNT
00 01 02 03 04
P61/PWM8AA
POLAA = 1
T8CR = 03
H
(2us)
T8PPRH = 00
H
T8PPRL = 0E
H
T8ADRH = 00
H
T8ADRL = 05
H
09 08 07 06 05 0D 0C 0B 0A 02 01 00 0E 06 05 04 03 0A 09 08 07 03 02 01 00 05 04
Source Clock
(f
x
)
06
Duty Cycle
(1+05
H
)X2us = 12us
Duty Cycle
(1+05
H
)X2us = 12us
Duty Cycle
(1+05
H
)X2us = 12us
Period Cycle
(1+0E
H
)X2us = 32us

31.25kHz
Period Cycle
(1+0A
H
)X2us = 22us

45.5kHz
Write 0A
H
to T4PPRL
Source Clock
(f
x
)
Duty Cycle(1+80
H
)X250ns = 32.25us
T8CNT
00 01 02 03 04
7F 80 81 82 3FF 00 01 02
P61/PWM8AA
POLAA = 1
P61/PWM8AA
POLAA = 0
Period Cycle(1+3FF
H
)X250ns = 256us

3.9kHz
T8PPRL(8 Bit)
T8ADRL(8 Bit)
T8PPRH(2 Bit)
T8ADRH(2 Bit)
03
H
FF
H
00
H
80
H
T8CR = 00
H
(f
XIN
)
T8PPRH = 03
H
T8PPRL = FF
H
T8ADRH = 00
H
T8ADRL = 80
H