Texas Instruments OMAP5912 Reference Manual page 1377

Table 40. Device Status Register (DEVSTAT) (Continued)
Bit Name
4 SUS
3 CFG
2 ADD
SPRU761A
Description
Suspended state bit: the device in suspended state is, at a
minimum, attached to the USB, powered, has been reset by the
USB host, and has not seen bus activity for 5 ms. It can also have a
unique address and be configured for use. Because the device is
suspended, however, the host cannot use the device function. This
bit returns 1 when the USB device is in a suspended state.
0: Not suspended
1: Suspended
Value after MPU or USB reset is low.
Configured state bit: the device is attached to the USB, powered,
has been reset, has a unique address, and is configured. The host
can use the function provided by the device. This bit returns 1 when
the USB device has been configured after a set
SYSCON2.DEV_CFG = 1. This bit remains set to 1 until the device
becomes deconfigured.
This bit is cleared when the core receives a valid
SET_CONFIGURATION request and the USB device controller sets
the SYSCON2.CLR_CFG bit. During the time this bit is not set to 1,
transactions that are not for control EP0 are ignored. A
GET_ENDPOINT_STATUS to a non-control endpoint is stalled.
0: Not configured
1: Configured
Value after MPU or USB reset is low.
Addressed state bit: the device is attached to the USB, powered,
has been reset, and a unique device address has been assigned.
This bit (ADD) returns 1 after an ET_ADDRESS standard request.
This bit remains set to 1 until the device becomes de-addressed.
0: Not addressed
1: Addressed
Value after MPU or USB reset is low.
USB Device Controller
Universal Serial Bus (USB) 85