Tuner Control: Allows devices to control the channel tuning on another device, such as a TV or cable box.Deck Control: Allows one device to control the playback on another device, sending play, pause, rewind, and related commands.System Standby: One device can tell all compatible devices to turn off or go into power-saving mode.One Touch Play: Devices can turn on the TV when activated to provide immediate playback.Implementation of features is manufacturer dependent. Here’s a quick summary of the most common HDMI-CEC functions. While there are some fringe cases where you might wish to disable HDMI-CEC (such as turning off the HDMI-CEC function in the Nintendo Switch, so every time your kid puts their device in the dock to charge, it doesn’t change your TV input), but for most people using HDMI-CEC all the time is an enormous convenience. It allows for both user-driven control of devices by remote control as well as automated actions performed by the devices on your behalf. The purpose of HDMI-CEC is to allow a single remote control or device to control other devices in a multimedia setup.
The software side is a communication standard built on top of the existing AV.link protocol. The physical side of things is a single dedicated bi-directional wire connection that occupies pinout number 13 on the HDMI cable standard and carries the signals between linked HDMI-CEC compatible devices. HDMI-CEC has both a physical and software element. HDMI-CEC, short for HDMI Consumer Electronics Control, was first defined with the release of the original HDMI 1.0 standard and formalized for active use in 2005 with the release of HDMI 1.2a, an early update to the High-Definition Multimedia Interface (HDMI) standard. Tips for Troubleshooting HDMI-CEC Connectionsįrequently Asked Questions About HDMI-CEC
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