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Microcontroller input/output connector state retention in low-power modes

  • US 10,317,978 B2
  • Filed: 12/05/2016
  • Issued: 06/11/2019
  • Est. Priority Date: 09/07/2012
  • Status: Active Grant
First Claim
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1. A microcontroller operable in a low-power mode, the microcontroller comprising:

  • a plurality of I/O connectors;

    an I/O controller operable to provide control signals for controlling states of the I/O connectors, wherein the I/O controller is powered off or deactivated during the low-power mode; and

    I/O connector state retention logic operable to store states of the control signals so as to maintain the I/O connectors in respective states that existed just prior to the I/O controller becoming powered off or deactivated, wherein the states are maintained while the microcontroller is in the low-power mode.

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