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TMDS171 / HDCP

ACGUY
Guru 11170 points
Other Parts Discussed in Thread: TMDS171

Hi all,
We were recommend to use the TMDS171 for the HDMI_I/F to customer.
They requesting the HDCP.
TMDS171 has an I2C_I/F.
Can I append the HDCP in TMDS171?

Regards,
Nagai

  • 0
    TI__Guru 60870 points

    Hello Nagai-san,

    The HDCP information will be sent between the source and the sink using DDC (SCL_SRC, SDA_SRC, SCL_SNK, SDA_SNK).  The TMDS171 can only redrive / level shift these lines or it can be configured to operate in DDC snoop mode only.  The SCL_CTL and SDA_CTL pins can be used to configure the TMDS171, but they cannot change HDCP.

    Regards,

    JMMN