at90pwm81-16se ATMEL Corporation, at90pwm81-16se Datasheet - Page 126

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

13.17 PSC Input Mode 9: Fixed Frequency Edge Retrigger PSC
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PSCOUTn0
PSCOUTn1
PSCn Input A
AT90PWM81
PSCn Input B
PSCOUTn0
PSCOUTn1
DT0
DT0
Figure 13-35. PSC behavior versus PSCn Input A in Mode 9
The output frequency is not modified by the occurrence of significative edge of retriggering input.
Only the output is deactivated when significative edge on retriggering input occurs.
Note: In this mode the output of the PSC becomes active during the next ramp even if the Retrigger/Fault
input is active. Only the significative edge of Retrigger/Fault input is taken into account.
Figure 13-36. PSC behavior versus PSCn Input B in Mode 9
The retrigger event is taken into account only if it occurs during the corresponding On-Time.
OT0
OT0
DT1
DT1
OT1
OT1
DT0
DT0
OT0
OT0
DT1
DT1
OT1
OT1
DT0
DT0
OT0
OT0
DT1
DT1
OT1
7734M–AVR–03/10
OT1