13.25.8.1.4 Finite State Machine Status

Name: FSMSTATUS
Offset: 0x0D
Reset: 0xXXXX
Property: Read only

Bit 76543210 
  FSMSTATE[6:0] 
Access RRRRRRR 
Reset 0000001 

Bits 6:0 – FSMSTATE[6:0] Fine State Machine Status

These bits indicate the state of the finite state machine of the USB controller.

ValueNameDescription
0x01OFF (L3)Corresponds to the powered-off, disconnected, and disabled state.
0x02ON (L0) Corresponds to the Idle and Active states.
0x04SUSPEND (L2)
0x08SLEEP (L1)
0x10DNRESUMEDown Stream Resume.
0x20UPRESUMEUp Stream Resume.
0x40RESETUSB lines Reset.
OthersReserved