Specifications

11
2
Data Type: CEC commands.
3
CEC Header: Bit 7~Bit4 is the Source's Logical address. Bit3~Bit0 is
the Sink's Logical address. In this example the DVD player needs to
send a command to the TV but it is not known if the TV is powered
on or not, so we send the broadcast command to all devices by
entering “4F”.
4
OPCode: CEC protocol commands are detailed in Section 9. In this
example for the “Active Source” command enter “82”.
5
Data Bytes: The payload bytes depend on which command is
being used and different commands will have different data bytes.
In this example the “Active Source” command has to identify
which physical address is needed. The address of the port that
connects to the TV is "1000" therefore “10” and “00” need to be
entered.
6
After entering all the necessary bytes press the “Transmit” button to
send the CEC command.
7
Details of transmitted data will be show on the RS-232 COM port
communication log window.
Step 2-3:
There are 3 built-in commonly used CEC Commands designed for
instant CEC execution. Pressing the button will execute the command
and show in the RS232 COM port communication log window.