Re: how DDC works???
Hello Nosheen,
if you are interested in how a DDC works you could take a look at some device's data-sheet and application notes. In the past I worked on the FW of a board equipped with a DDC by Analog Devices, the AD6624A: its data sheet is not very well organized (in my opinion the information necessary to set the configuration of the device are too fragmented in the document and not clearly described) but it is a good example to study from an architectural point of view, because it describes each functional block of the device.
Then you could read some application note to see how the device could be used in a TLC system.
Regards
Mowgli