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 16-15. PSCOUTn0 retriggered by PSCn Input A (Edge Retriggering)

On-Time 0

On-Time 1

PSCOUTn0

PSCOUTn1

PSCn Input A

(falling edge)

PSCn Input A

(rising edge)

Dead-Time 0

Dead-Time 1

Note: This exemple is given in “Input Mode 8” in “2 or 4 ramp mode” See Figure 16-31. for details.

Figure 16-16. PSCOUTn0 retriggered by PSCn Input A (Level Acting)

On-Time 0

On-Time 1

PSCOUTn0

PSCOUTn1

PSCn Input A

(high level)

PSCn Input A

(low level)

Dead-Time 0

Dead-Time 1

Note: This exemple is given in “Input Mode 1” in “2 or 4 ramp mode” See Figure 16-20. for details.

16.8.3

Retrigger PSCOUTn1 On External Event

PSCOUTn1 ouput can be resetted before end of On-Time 1 on the change on PSCn Input B.

The polarity of PSCn Input B is configurable thanks to a sense control block. PSCn Input B can

be configured to do not act or to act on level or edge modes. PSCn Input B can be the Output of

the analog comparator or the PSCINn input.

As the period of the cycle decreases, the instantaneous frequency of the two outputs increases.

4317K–AVR–03/2013

146

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