Apparatus and method to decode a pulse width modulated serial da

Details Apparatus and method to decode a pulse width modulated serial da Apparatus and method to decode a pulse width modulated serial da

1995-03-23

1997-03-25

Chin, Stephen

Pulse or digital communications

Pulse width modulation

332109, H03K 708

Patent

active

056152280

ABSTRACT:
An integrated circuit (IC) configurable as transmitter/receiver includes a microcontroller to aid in decoding a pulse width modulated serial dam stream. The microcontroller accomplishes the decoding with the aid of a counter and an external clock signal without the necessity of using interrupts. Edge detection circuitry detects the rising and the rising edge of the incoming data pulse. The external clock signal clocks a counter to determine how many clock signals the incoming pulse corresponds to. The microcontroller polls the counter on the rising edge and the falling edge.

REFERENCES:
patent: 4982350 (1991-01-01), Perna et al.
patent: 5313496 (1994-05-01), de Goede
patent: 5414347 (1995-05-01), Monk et al.
patent: 5436853 (1995-07-01), Shimohara

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