SPRUIV7C May 2022 – November 2025 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP
Table 6-12 summarizes different USB wakeup use cases which are supported in each system sleep state (DeepSleep, MCU-only or Standby). Three use case scenarios exist:
Within each wakeup use case, each row describes whether or not that type of wakeup is supported in each system sleep mode. USB mode (host or device) is also considered.
There are three possible Wakeup events that are generated:
| No. | USB Wakeup Use Case | System Sleep State | USB Controller State | USB Mode | Supported | USB Wakeup Event |
|---|---|---|---|---|---|---|
| 1 | USB Connect | DS/MCU-only/Standby |
Clock Gated Register Contexts Retained |
Host | Yes | PHY Signal WKUP |
| 2 | DS/MCU-only/Standby |
Clock Gated Register Contexts Retained |
Device | Yes | PHY VBUS WKUP | |
| 3 | DS/MCU-only/Standby |
Clock Gated Register Contexts Retained |
Undetermined | Yes | ID Status WKUP | |
| 4 | USB Resume / Remote Wakeup | DS/MCU-only/Standby |
Clock Gated Register Contexts Retained |
Host | Yes | PHY Signal WKUP |
| 5 | DS/MCU-only/Standby |
Clock Gated Register Contexts Retained |
Device | Yes | PHY Signal WKUP | |
| 6 | USB Disconnect | DS/MCU-only/Standby |
Clock Gated Register Contexts Retained |
Host | Yes |
PHY Signal WKUP, ID Status WKUP |
| 7 | DS/MCU-only/Standby |
Clock Gated Register Contexts Retained |
Device | Yes | PHY VBUS WKUP |