DS90UH984-Q1EVM: Compatibility with the DS90UB981-Q1 - DSI input DP/eDP Output

Hi Miguel,

The DS90UH981-Q1 is compliant to D-PHY v1.2 and DSI v1.3.1. Could you check whether the DSI interface is compatible with this version of D-PHY and DSI.

And yes, the DS90UH981-Q1 is compatible with the DS90UH984-Q1. The FPD-Link IV SerDes are compatible with each other as mentioned in the full datasheet, and also backwards compatible with FPD-Link III previous generation devices. 


Please let us know if you have any questions about these devices. 

Best regards,
Ikram

Hello Ikram,

First of all, thank you for your quick reply.

I have a follow-up question about the DS90UH984-Q1. Since this De-Serializer has 2 output DP/eDP ports, can it perform data spiting/distinction using the Virtual Channel information?

That is to say, if I am using at the Serializer end a DSI single input which is receiving a stream of two distinct frames using different Virtual Channels, can the De-serializer use the same Virtual Channel information to split the two different frames on the different output DP/eDP ports?

Thanks

Miguel

Hi Miguel,

Yes, using virtual channels on the DSI input is possible and can be separated as different video streams. Only difference is that the video processing is done on the SER for the DSI input. The 981 SER can process the virtual channels to separate streams, which can then be mapped to each DP/eDP output of the 984 DES.

And I just wanted to point out, that you will find FPD-Link display devices have UH and UB versions, where the UH version (when SerDes are paired with HDCP enabled) can support HDCP encryption while the UB versions do not support HDCP. 

Please let us know if you have further questions.

Best regards,
Ikram