SLLSES1D December 2015 – September 2020 HD3SS3220
PRODUCTION DATA
Unattached mode isthe primary mode of operation for the HD3SS3220 since a USB port can be unattached for a lengthy period of time. In Unattached mode, VDD5 is available, and all IOs and I2C are operational. VCONN is disabled.
After HD3SS3220 are powered up, the part enters unattached mode until a successful attach has been determined. Initially, right after power up, the HD3SS3220 comes up as an unattached.SNK. The HD3SS3220 checks the PORT pin and operate according to the mode configuration. This means that the HD3SS3220 toggle between UFP and DFP if configured as a DRP