LM3S9B90 Datasheet, PDF (934/1185 Pages) Texas Instruments – Stellaris® LM3S9B90 Microcontroller

Universal Serial Bus (USB) Controller
Bit/Field
3
Name
SOF
Type
RO
Reset
0
Description
Start of Frame
Value Description
1 A new frame has started.
0 No interrupt.
2
BABBLE
RO
0
Babble Detected
Value Description
1 Babble has been detected. This interrupt is active only after the
first SOF has been sent.
0 No interrupt.
1
RESUME
RO
0
RESUME Signaling Detected
Value Description
1 RESUME signaling has been detected on the bus while the
USB controller is in SUSPEND mode.
0 No interrupt.
This interrupt can only be used if the USB controller's system clock is
enabled. If the user disables the clock programming, the USBDRRIS,
USBDRIM, and USBDRISC registers should be used.
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.
OTG B / Device Mode
USB General Interrupt Status (USBIS)
Base 0x4005.0000
Offset 0x00A
Type RO, reset 0x00
7
6
5
4
3
reserved
DISCON reserved SOF
Type RO
RO
RO
RO
RO
Reset
0
0
0
0
0
2
1
0
RESET RESUME SUSPEND
RO
RO
RO
0
0
0
Bit/Field
7:6
5
Name
reserved
DISCON
Type
RO
RO
Reset
0x0
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.
Session Disconnect
Value Description
1 The device has been disconnected from the host.
0 No interrupt.
934
June 14, 2010
Texas Instruments-Advance Information