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USB 2.0 Hi-Speed Hub Controller
Datasheet
Revision 1.0 (3-11-09) 36 SMSC USB251x
DATASHEET
8.2.1.1 Register 00h: Vendor ID (LSB)
8.2.1.2 Register 01h: Vendor ID (MSB)
54h-91h Product String R 00
92h-CFh Serial String R 00
D0h Battery Charging Enable R 00
E0h Reserved 00 R
F5h Reserved 00 R 00
F6h Boost_Up 00
F7h Boost_7:5 00 R 00
F8h Boost_x:0 00
F9h Reserved 00
FAh Port Swap 00
FBh Port Map 12 00
FCh Port Map 34 R 00 R 00
FDh Port Map 56 R 00
FEh Port Map 7 R 00
FFh Status/Command
Note: SMBus register only
00
BIT
NUMBER BIT NAME DESCRIPTION
7:0 VID_LSB Least Significant Byte of the Vendor ID. This is a 16-bit value that uniquely
identifies the Vendor of the user device (assigned by USB-Interface Forum).
This field is set by the OEM using either the SMBus or EEPROM interface
options.
BIT
NUMBER BIT NAME DESCRIPTION
7:0 VID_MSB Most Significant Byte of the Vendor ID. This is a 16-bit value that uniquely
identifies the Vendor of the user device (assigned by USB-Interface Forum).
This field is set by the OEM using either the SMBus or EEPROM interface
options.
Table 8.2 Internal Default, EEPROM and SMBus Register Memory Map (continued)
ADDRESS REGISTER NAME
DEFAULT ROM VALUES (HEXIDECIMAL)
USB2512/12i
USB2512A/12Ai
USB2513/13i
USB2514/14i
USB2512B/12Bi
USB2513B/13Bi
USB2514B/14Bi
USB2517/17i