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AT90PWM3 Datasheet(PDF) 130 Page - ATMEL Corporation

Part # AT90PWM3
Description  8-bit Microcontroller with 8K Bytes In-System Programmable Flash
PDF  361 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT90PWM3 Datasheet(HTML) 130 Page - ATMEL Corporation

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4317J–AVR–08/10
AT90PWM2/3/2B/3B
16.3
PSC Description
Figure 16-1. Power Stage Controller 0 or 1 Block Diagram
Note:
n = 0, 1
The principle of the PSC is based on the use of a counter (PSC counter). This counter is able to
count up and count down from and to values stored in registers according to the selected run-
ning mode.
The PSC is seen as two symetrical entities. One part named part A which generates the output
PSCOUTn0 and the second one named part B which generates the PSCOUTn1 output.
Each part A or B has its own PSC Input Module to manage selected input.
OCRnRB
OCRnSB
OCRnRA
=
=
=
PSC Counter
Waveform
Generator B
PSC Input
Module B
PSC Input
Module A
PSCOUTn1
PCTLn
PFRCnA
PSOCn
( From Analog
Comparator n Ouput )
OCRnSA
=
PCNFn
PFRCnB
POM2(PSC2 only)
PICRn
Waveform
Generator A
PSCOUTn0
PSCINn
Part B
Part A
PISELnB
PISELnA
PSCn Input B
PSCn Input A



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