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Original question:

SN65DP159: HPD & I2C Connection

SN65DP159: OE pin

Shunsuke Nagata
Genius 13040 points
Part Number: SN65DP159

Hi, 

Could you please let me know about OE pin? Will all of register be cleared when OE pin set to L (Power-down mode)?

Regards,
Nagata.

  • 0
    TI__Guru**** 176186 points

    Nagata-san

    When the SNx5DP159 is put into a power down state using the OE pin the I 2C registers are cleared. Please note the TMDS_CLOCK_RATIO_STATUS bit will be cleared in all power down states. If cleared and HDMI2.0 resolutions are to be supported, the SNx5DP159 expects the source to write a 1 to this bit location. If this does not happen the PLL will not be set properly and no video may be evident.

    Thanks

    David