LM3S9B81 Datasheet, PDF (890/1155 Pages) Texas Instruments – Stellaris® LM3S9B81 Microcontroller

Universal Serial Bus (USB) Controller
Table 20-6. Universal Serial Bus (USB) Controller Register Map (continued)
Offset Name
Type
Reset
Description
0x430 USBVDC
0x434 USBVDCRIS
0x438 USBVDCIM
0x43C USBVDCISC
0x444 USBIDVRIS
0x448 USBIDVIM
0x44C USBIDVISC
0x450 USBDMASEL
R/W
RO
R/W
R/W
RO
R/W
R/W1C
R/W
0x0000.0000
0x0000.0000
0x0000.0000
0x0000.0000
0x0000.0000
0x0000.0000
0x0000.0000
0x0033.2211
USB VBUS Droop Control
USB VBUS Droop Control Raw Interrupt Status
USB VBUS Droop Control Interrupt Mask
USB VBUS Droop Control Interrupt Status and Clear
USB ID Valid Detect Raw Interrupt Status
USB ID Valid Detect Interrupt Mask
USB ID Valid Detect Interrupt Status and Clear
USB DMA Select
See
page
993
994
995
996
997
998
999
1000
20.6
OTG B /
Device
OTG A /
Host
OTG
Register Descriptions
The LM3S9B81 USB controller has On-The-Go (OTG) capabilities as specified in the USB0 bit field
in the DC6 register (see page 155).
This icon indicates that the register is used in OTG B or Device mode. Some registers are used for
both Host and Device mode and may have different bit definitions depending on the mode.
This icon indicates that the register is used in OTG A or Host mode. Some registers are used for
both Host and Device mode and may have different bit definitions depending on the mode. The
USB controller is in OTG B or Device mode upon reset, so the reset values shown for these registers
apply to the Device mode definition.
This icon indicates that the register is used for OTG-specific functions such as ID detection and
negotiation. Once OTG negotiation is complete, then the USB controller registers are used according
to their Host or Device mode meanings depending on whether the OTG negotiations made the USB
controller OTG A (Host) or OTG B (Device).
890
June 29, 2010
Texas Instruments-Advance Information