Fujitsu MB91150 Series Hardware Manual page 224

CHAPTER 8 PPG TIMER
[Bit 0] OSEL: PWM output polarity specification bit
This bit specifies the polarity of the PWM output
This bit and bit 9 are combined to select the type of PWM output
PMGS
0
0
1
1
Polarity
Normal polarity
Reverse polarity
208
OSEL
0 Normal polarity (initial value)
1 Reverse polarity
0 Fixed to low level
1 Fixed to high level
After reset
Low output
High output
PWM output
Duty match Counter borrow