LM3S5737 Datasheet, PDF (684/833 Pages) Texas Instruments – Stellaris® LM3S5737 Microcontroller

Universal Serial Bus (USB) Controller
Register 7: USB General Interrupt Status (USBIS), offset 0x00A
Important: This register is read-sensitive. See the register description for details.
Host
USBIS is an 8-bit read-only register that indicates which USB interrupts are currently active. All
active interrupts are cleared when this register is read.
Device
Host Mode
USB General Interrupt Status (USBIS)
Base 0x4005.0000
Offset 0x00A
Type RO, reset 0x00
7
6
5
4
3
reserved
DISCON CONN SOF
Type RO
RO
RO
RO
RO
Reset
0
0
0
0
0
2
1
0
BABBLE RESUME reserved
RO
RO
RO
0
0
0
Bit/Field
7:6
5
Name
reserved
DISCON
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.
Session Disconnect
Value Description
1 A Device disconnect has been detected.
0 No interrupt.
4
CONN
RO
0
Session Connect
Value Description
1 A Device connection has been detected.
0 No interrupt.
3
SOF
RO
0
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.
684
November 17, 2011
Texas Instruments-Production Data