HDMI Consumer Electronics Control (CEC)

CEC (Consumer Electronics Control) is a one-wire serial bus connected via HDMI and used to perform remote control functions across multiple devices.

Top Resources

• ​Wikipedia​

• ​CEC White Paper​

• ​XBMC Wiki​

• ​Respberry Pi Forum​

Example HDMI CEC Parts

• ​USB CEC Adapter​

• ​RCAware PC-CEC Remote​

What Logic Decodes

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• Start Sequence

• 10-bit Header Blocks

• 10-bit Data Blocks

• EOM bits

• ACK bits