at90pwm81-16se ATMEL Corporation, at90pwm81-16se Datasheet - Page 108

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

108
AT90PWM81
Figure 13-9.
On-Time 0 = 2 * OCRnSAH/L * 1/Fclkpsc
On-Time 1 = 2 * (OCRnRBH/L - OCRnSBH/L + 1) * 1/Fclkpsc
Dead-Time = (OCRnSBH/L - OCRnSAH/L) * 1/Fclkpsc
PSC Cycle = 2 * (OCRnRBH/L + 1) * 1/Fclkpsc
Note:
OCRnRAH/L is not used to control PSC Output waveform timing. Nevertheless, it can be useful to adjust
ADC synchronization (
Figure 13-10. Run and Stop Mechanism in Centered Mode
Note:
OCRnRB
OCRnSB
OCRnSA
PSC Counter
Run
PSCOUTn0
PSCOUTn1
Minimal value for PSC Cycle = 2 * 1/Fclkpsc
See “PSC 2 Control Register – PCTL2” on page
PSCOUTn0
PSCOUTn1
PSCn0 & PSCn1 Basic Waveforms in Center Aligned Mode
OCRnRB
OCRnSB
OCRnSA
On-Time 1
See “Analog Synchronization” on page 130.
PSC Counter
Dead-Time
On-Time 0
PSC Cycle
0
0
139.(or PCTL1 or PCTL2)
Dead-Time
).
On-Time 1
7734M–AVR–03/10