at90pwm81-16se ATMEL Corporation, at90pwm81-16se Datasheet - Page 166

• Manufacturer Part Number: at90pwm81-16se
• Description: 8-bit Avr Microcontroller With 8k Bytes In- System Programmable Flash
• Manufacturer: ATMEL Corporation

14.16 PSCR Input Mode 8: Edge Retrigger PSC
166
AT90PWM81
PSCn Input B
PSCOUTn0
PSCOUTn1
PSCn Input B
PSCn Input A
PSCOUTn0
PSCOUTn1
or
DT0
Figure 14-25. PSCR behavior versus PSCr Input A in Mode 8
The output frequency is modulated by the occurrence of significative edge of retriggering input.
Figure 14-26. 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.
DT0
OT0
OT0
DT1
DT1
OT1
OT1
DT0
DT0 OT0
OT0
DT1
DT1
OT1
OT1
DT0
DT0
OT0
OT0
DT1
DT1
OT1
OT1
7734M–AVR–03/10