Datasheet

166
7734Q–AVR–02/12
AT90PWM81/161
13.16 PSCR Input Mode 8: Edge Retrigger PSC
Figure 13-26. PSCR behavior versus PSCr Input A in Mode 8.
The output frequency is modulated by the occurrence of significative edge of retriggering input.
Figure 13-27. PSCR behavior versus PSCr Input B in Mode 8.
The output frequency is modulated by the occurrence of significative edge of retriggering input.
The retrigger event is taken into account only if it occurs during the corresponding On-Time.
Note: In one ramp mode, the retrigger event on input A resets the whole ramp. So the PSCR
doesn’t jump to the opposite dead-time.
PSCOUTn0
PSCOUTn1
DT0
OT0
DT1 OT1
DT0 OT0 DT0 OT0
DT1 OT1 DT1 OT1
PSCn Input A
PSCOUTn0
PSCOUTn1
DT0 OT0
DT1 OT1
DT0 OT0 DT0 OT0
DT1 OT1 DT1 OT1
PSCn Input B
PSCn Input B
or