Datasheet

108
7734Q–AVR–02/12
AT90PWM81/161
Figure 12-8. PSCn0 & PSCn1 basic waveforms in One Ramp mode.
On-Time 0 = (OCRnRAH/L - OCRnSAH/L) × 1/Fclkpsc
On-Time 1 = (OCRnRBH/L - OCRnSBH/L) × 1/Fclkpsc
Dead-Time 0 = (OCRnSAH/L + 1) × 1/Fclkpsc
Dead-Time 1 = (OCRnSBH/L - OCRnRAH/L) × 1/Fclkpsc
Note: Minimal value for Dead-Time 0 = 1/Fclkpsc.
12.5.2.4 Center Aligned Mode
In center aligned mode, the center of PSCn00 and PSCn01 signals are centered.
On-Time 0 On-Time 1
PSCOUTn0
PSCOUTn1
Dead-Time 1
Dead-Time 0
PSC Cycle
OCRnRB
OCRnSB
OCRnRA
OCRnSA
PSC Counter
0