AT90PWM2B-16SU 查看數據表（PDF） - Atmel Corporation

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AT90PWM2B-16SU

8-bit Atmel Microcontroller with 8K Bytes In-System Programmable Flash

Atmel Corporation 

AT90PWM2/3/2B/3B

Figure 16-8. PSCn0 & PSCn1 Basic Waveforms in One Ramp mode

PSC Counter

OCRnSB

OCRnRA

OCRnRB

OCRnSA

0

On-Time 0

On-Time 1

PSCOUTn0

PSCOUTn1

Dead-Time 0

PSC Cycle

Dead-Time 1

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

16.5.2.4

Center Aligned Mode

In center aligned mode, the center of PSCn0 and PSCn1 signals are centered.

4317K–AVR–03/2013

139

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