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DS90UH948-Q1: question about DS90UH948-Q1

Jimmy Huang
Genius 3265 points
Part Number: DS90UH948-Q1

Hello：

1. When HDCP content protection reaches the deserializer, the output data from the deserializer to the display is decrypted. How to configure registers to enable UH948 UH949 HDCP function?

2. Can you provide information on the HDCP testing and certification process?

3. The manual introduces HDCP. What registers do customers need to configure to enable HDCP functionality?

4. After the HDCP function is enabled, can it be directly handed over to a third-party (ATC) certification agency for HDCP certification and licensing?

5. Which HDCP license is more suitable for the process of HDCP certification? HDCP v1.4, as shown in the figure below, should be selected between these two versions. Is your understanding correct?

  • 0
    TI__Mastermind 18975 points

    Hi Jimmy,

    Jimmy Huang said:
    1. When HDCP content protection reaches the deserializer, the output data from the deserializer to the display is decrypted. How to configure registers to enable UH948 UH949 HDCP function?

    On the UH949 deserializer, set main page register 0xC3[2] = 1 and main page register 0xC3[0] = 1.

    Jimmy Huang said:
    2. Can you provide information on the HDCP testing and certification process?

    This question seems more appropriate for DCP. Note that TI simply licenses the HDCP protocol for use in FPD-Link components.

    Jimmy Huang said:
    3. The manual introduces HDCP. What registers do customers need to configure to enable HDCP functionality?

    See above response to (1).

    Jimmy Huang said:
    4. After the HDCP function is enabled, can it be directly handed over to a third-party (ATC) certification agency for HDCP certification and licensing?

    See above response to (2).

    Jimmy Huang said:
    5. Which HDCP license is more suitable for the process of HDCP certification? HDCP v1.4, as shown in the figure below, should be selected between these two versions. Is your understanding correct?

    See above response to (2). Please see https://www.digital-cp.com/licensing for more information.

    Best,

    Nikolas

  • 0 in reply to Nikolas Antonucci
    Genius 3265 points

    Hi Nikolas：

    1、On the UH949 deserializer, set main page register 0xC3[2] = 1 and main page register 0xC3[0] = 1.

    This is the HDCP that enables encryption registers. So how can the corresponding deserializer decryption register enable HDCP（UH948）?

    2、This question seems more appropriate for DCP. Note that TI simply licenses the HDCP protocol for use in FPD-Link components.

    What else do customers need to do after the HDCP function is enabled? Or is it directly handed over to a third-party organization for HDCP certification?

    3、For HDCP v1.4 and other version, which version of license does TI recommend using for authentication?

  • 0 in reply to Jimmy Huang
    TI__Mastermind 18975 points

    Hello Jimmy,

    Jimmy Huang said:
    This is the HDCP that enables encryption registers. So how can the corresponding deserializer decryption register enable HDCP（UH948）?

    Apologies for the typo - the 949 is a serializer. To enable the encryption on the SER side, set main page register 0xC3[2] = 1 and main page register 0xC3[0] = 1, as stated above.

    On the 948 deserializer side, no registers need to be updated. The output of the deserializer is automatically outputted as decrypted content.

    Jimmy Huang said:
    For HDCP v1.4 and other version, which version of license does TI recommend using for authentication?

    TI does not have one particular recommendation for authentication. All that is required for UH device usage is an HDCP adopter license. 

    Best,

    Nikolas