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TFP501 HDCP ROM

Kikuo Mita
Intellectual 2515 points
Other Parts Discussed in Thread: TFP501
Hi, Please advice me on how to progam HDCP Key data for TFP501?
 
Q1. Are there any PC resident software which mapps the HDCP key data
      in ROM space and  creates HEX file for ROM programmer?
 
Q2. If so, does who provide such software. Does TI or HDC LLC?
 
Q3. IF not, how you can generate the fuse data which includes HDCP key data?
 
Q4. How are the EDIT data stored?
     Are the EDIT data are progrmmed into the same ROM as HDCP key data?
 
Q5. If the ROM is progrmmed with test key (Open key and/or secret key),
      can TFP501 receve datar from any souce devcies or nay restricted devcies?
 
I appriciate it if you can give me feedback with in tomorrow?
 
Mita
  • 0
    TI__Guru* 76130 points

    Hello,

    The TFP501 has its HDCP key built-in. A HDCP transmitter will read this keys form the TFP501.

    Regards.

  • 0 in reply to Elias Villegas M.
    TI__Intellectual 2515 points

    Elivas-san,

    Thank you for your shuttle feedback.

    I suspect that TFP501 is used with Serial ROM which contains the HDCP key infromation.
    It is correnct?
    If so, does TI program the ROM and ship to customer with TFP501?

    Mita

  • 0 in reply to Kikuo Mita
    TI__Genius 11450 points

    Mita-san, You are correct. The TFP501 interfaces via I2C with a EPROM, the customer would purchase HDCP keys from the Digital Content Protection organization (www.digital-cp.com) and then program those keys to the EPROM. Each EPROM will be programmed with a unique key, during the initial power on sequence, the TFP501 will read the raw keys from the EPROM, encrypt the keys and then write back the encrypted key to the EPROM.

  • 0 in reply to Undrea Fields
    TI__Intellectual 2515 points

    Undrea-san,

    Thank you for the answer.
    I understand it.
    However, I have further questions bellow.
    Please advise me.

    Q1. Are the key data provided HDC LLC in fashion  such as .HEX or .BIN
    which can be handled with ordinal ROM writer or do you need converting
     the key data into .HEX or other ROM data??
     
    Q2. If you need conversion, does who provide such software. Does TI or HDC LLC?
     
    Q3. Beside HDCP Key, DVI requires EDIT data.
    Where are the EDIT data stored?
        Are the EDIT data programmed into the same ROM as HDCP key data?

    Q4. If so, how you can marge the HDCP key data and EDIT data into one ROM?

    Q5. If the ROM is programmed with test key (Open key and/or secret key),
        can TFP501 receiver data from any source devices or any restricted devices

     Mita

  • 0 in reply to Kikuo Mita
    TI__Genius 11450 points

    Mita-san,

    1. I believe the keys are provided in .bin format but I am not positive of this.  The format will be defined when purchased.

    2. The customer is responsible for programming the keys to the EPROM, TI does not provide a method for this programming.

    3. I believe you are referring to the EDID ROM.  The EDID ROM is interfaced through the DVI or HDMI connector pins, the EPROM for HDCP in interfaced to the TFP501 through a seperate dedicated interface.

    4. The EDID ROM and HDCP ROM are seperate interfaces, they cannot be combined.

    5. If test keys are programmed in the TFP501 the HDCP handshake will only work with a transmitter with test keys.  Both devices must have either real keys or test keys.

  • 0 in reply to Undrea Fields
    TI__Intellectual 2515 points

    Undrea-san,

    Thank you for the answers.
    I could clear all questions.

    Mita