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HD3SS3220: DISABLE _UFP _ACCESSORY interpretation

Part Number: HD3SS3220

Hi team,

I’m wondering about the interpretation of DISABLE _UFP _ACCESSORY register.

This register intend for determining whether HD3SS3220 detects accessory or not when the HD3SS3220 is UFP mode, is that correct?

Regards,

Saito

  • Hi Satio-san,

    ATTACHED_STATE and ACCESSORY_CONNECTED are the registers used to determine whether or not a device or accessory is connected in UFP (and DFP/DRP) mode. DISABLE _UFP _ACCESSORY is used to stop UFP from connecting to or acting as a debug accessory. Depending on the application Accessory Support can be restricted.