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SN65DSI84: Reset the device

NAOKI AOYAMA
Guru 11215 points
Part Number: SN65DSI84
Other Parts Discussed in Thread: SN65DSI85

Hello,

There are two ways to reset the SN65DSI84.

Hard reset by EN and Soft reset by register setting.

What is the difference of these ways?

The customer apply external capacitor controlled EN (Figure 8 on the DS).

So, the customer can not reset by EN except for the first initialization.

Is there any problem?

Best Regards,

Naoki Aoyama

  • 0
    TI__Mastermind 18655 points
    Hello Naoki,

    No, it is correct to follow the video stop and restart sequence.

    When the system requires to stop outputting video to the display, it is recommended to use the following
    sequence for the SN65DSI85:
    1. Clear the PLL_EN bit to 0 (CSR 0x0D.0)
    2. Stop video streaming on DSI inputs
    3. Drive all DSI input lanes including DSI CLK lane to LP11.
    When the system is ready to restart the video streaming.
    1. Start video streaming on DSI inputs.
    2. Set the PLL_EN bit to 1 (CSR 0x0D.0).
    3. Wait for a minimum of 3 ms.
    4. Set the SOFT_RESET bit (0x09.0).

    Regards