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Application Notes/
Technical Brief
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TB045
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Title:
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KEELOQ® Manchester Encoding Receive Routines
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Name:
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TB045
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Date:
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6/13/11
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Author:
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Lucio Di Jasio
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Description:
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All KEELOQ® Encoders use a common code word format. They all pack the bits of information in the same number and position in the transmission sequence. While all the encoders offer a basic Pulse Width Modulation (PWM) method to produce a signal that is suitable for radio transmission, many Advanced KEELOQ Encoders (HCS360 and higher) offer alternative methods. One such alternative method is Manchester encoding. This Technical Brief shows PICmicro® microcontrollers assembly routines to receive Manchester encoded transmissions. other encoding systems, such as PWM.
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Keywords:
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KEELOQ, Manchester, Mid-Range, Receiver, Interrupt
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