Consumer Electronics Control

Consumer Electronics Control (CEC) is a feature of HDMI designed to control HDMI connected devices[1][2] by using only one remote controller; so, individual CEC enabled devices can command and control each other without user intervention, for up to 15 devices.[3]:§CEC-3.1 For example, a television set remote controller can also control a set-top box and a DVD player.

It is a one-wire bidirectional serial bus that is based on the CENELEC standard AV.link protocol to perform remote control functions.[4] CEC wiring is mandatory, although implementation of CEC in a product is optional.[3](§8.1) It was defined in HDMI Specification 1.0 and updated in HDMI 1.2, HDMI 1.2a and HDMI 1.3a (which added timer and audio commands to the bus).[3]:§§CEC-1.2,CEC-1.3,CEC-3.1,CEC-5 USB to CEC adapters exist that allow a computer to control CEC-enabled devices.[5][6]

  1. ^ Ganesh, T.S. (January 24, 2012). "Pulse-Eight USB CEC Adapter Review". AnandTech.
  2. ^ Adler, Greg (March 26, 2008). "The Secret Feature on Your HDTV: HDMI CEC". TechHive.
  3. ^ a b c "Supplement 1: Consumer Electronics Control (CEC)". High-Definition Multimedia Interface Specification 1.3a (PDF). HDMI Licensing, LLC. November 10, 2006. Archived from the original (PDF) on 2017-10-09. Retrieved April 1, 2016 – via Microprocessor.org. CS1 maint: discouraged parameter (link)
  4. ^ Designing CEC into your next HDMI Product (PDF) (white paper). Quantum Data. December 18, 2008.
  5. ^ "The USB-CEC Adapter is a look into the Future". xbmc. November 1, 2011. Retrieved November 20, 2011. CS1 maint: discouraged parameter (link)
  6. ^ Drawbaugh, Ben (August 25, 2010). "Take control of your TV with your HTPC via HDMI-CEC". Engadget. Retrieved November 20, 2011. CS1 maint: discouraged parameter (link)