at90pwm81-16se ATMEL Corporation, at90pwm81-16se Datasheet - Page 101
at90pwm81-16se
Manufacturer Part Number
at90pwm81-16se
Description
8-bit Avr Microcontroller With 8k Bytes In- System Programmable Flash
Manufacturer
ATMEL Corporation
Datasheet
1.AT90PWM81-16SE.pdf
(323 pages)
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13.3.1
13.3.2
7734M–AVR–03/10
PSC2 Distinctive Feature
Output Polarity
Figure 13-2.
Note:
PSC2 has two supplementary outputs PSCOUT22 and PSCOUT23. Thanks to a first selector PSCOUT22
can duplicate PSCOUT20 or PSCOUT21. Thanks to a second selector PSCOUT23 can duplicate
PSCOUT20 or PSCOUT21.
The Output Matrix is a kind of 2*2 look up table which gives the possibility to program the output values
according to a PSC sequence
The polarity “active high” or “active low” of the PSC outputs is programmable. All the timing diagrams in
the following examples are given in the “active high” polarity.
n = 2
PCTLn
OCRnRB
OCRnSB
OCRnRA
PICRn
PSC Counter
PCNFn
OCRnSA
PCNFEn
PSC2 versus PSC1&PSC0 Block Diagram
=
=
=
=
(See “Output Matrix” on page
PFRCnA
PFRCnB
Generator B
PSC Input
Module B
PSC Input
Module A
Generator A
Waveform
Waveform
Part A
Part B
Output
Matrix
PSOCn
POM2(PSC2 only)
PASDLYn
129.)
POS23
POS22
PSCOUTn3
PSCOUTn1
PSCn Input B
PSCn Input A
PSCOUTn2
PSCOUTn0
AT90PWM81
101
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