Circuit and method for extending microcontroller analog...

Coded data generation or conversion – Analog to or from digital conversion – Analog to digital conversion

Reexamination Certificate

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C341S141000

Reexamination Certificate

active

11253479

ABSTRACT:
A circuit and method extends the analog input capability of a microcontroller by including an autonomous sequence control circuit that supplies input signal setting data and implements delay functions independent of the microcontroller central processing unit (CPU). The sequence controller supplies input signal selection commands to an input multiplexer, and analog signal processing commands to one or more analog signal processing circuits. After a predetermined settling time, the sequence control circuit then initiates an analog-to-digital converter (ADC) to convert the select analog signal to digital data. The circuit and method extend the number of available external address bits and the maximum settling time of the ADC.

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