LM3S5739 Datasheet, PDF (703/856 Pages) Texas Instruments – Stellaris® LM3S5739 Microcontroller

Stellaris® LM3S5739 Microcontroller
Register 16: USB Device Control (USBDEVCTL), offset 0x060
Host
USBDEVCTL provides the status information for the current operating mode (Host or Device) of
the USB controller. If the USB controller is in Host mode, this register also indicates if a full- or
low-speed Device has been connected.
USB Device Control (USBDEVCTL)
Base 0x4005.0000
Offset 0x060
Type RO, reset 0x80
7
6
5
4
3
reserved FSDEV LSDEV
reserved
Type RO
RO
RO
RO
RO
Reset
0
0
0
0
0
2
HOST
RO
0
1
0
reserved
RO
RO
0
0
Bit/Field
7
6
Name
reserved
FSDEV
Type
RO
RO
Reset
0
0
Description
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
Full-Speed Device Detected
Value Description
0 A full-speed Device has not been detected on the port.
1 A full-speed Device has been detected on the port.
5
LSDEV
RO
0
Low-Speed Device Detected
Value Description
0 A low-speed Device has not been detected on the port.
1 A low-speed Device has been detected on the port.
4:3
reserved
RO
0
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
2
HOST
RO
0
Host Mode
Value Description
0 The USB controller is acting as a Device.
1 The USB controller is acting as a Host.
Note: This value is only valid while a session is in progress.
1:0
reserved
RO
0
Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
November 17, 2011
703
Texas Instruments-Production Data