ADDRESS
REGISTER NAME
USB 2.0 Hi-Speed Hub Controller
Datasheet
DEFAULT ROM VALUES
(HEXIDECIMAL)
54h-91h
92h-CFh
D0h
E0h
F5h
F6h
F7h
F8h
F9h
FAh
FBh
FCh
FD-FEh
FFh
Product String
Serial String
Battery Charging Enable
rsvd
rsvd
Boost_Up
rsvd
Boost_x:0
rsvd
Port Swap
Port Map 12
Port Map 34
rsvd
Status/Command
Note: SMBus register only
00
00
00
00
00
00
00
00
00
00
00
-
00
00
00
5.1.1 Register 00h: Vendor ID (LSB)
BIT
NUMBER
BIT NAME
DESCRIPTION
7:0
VID_LSB
Least Significant Byte of the Vendor ID: a 16-bit value that uniquely identifies
the Vendor of the user device (assigned by USB-Interface Forum). Set this
field using either the SMBus or I2C EEPROM interface options.
5.1.2 Register 01h: Vendor ID (MSB)
BIT
NUMBER
BIT NAME
DESCRIPTION
7:0
VID_MSB
Most Significant Byte of the Vendor ID: a 16-bit value that uniquely identifies
the Vendor of the user device (assigned by USB-Interface Forum). Set this
field using either the SMBus or I2C EEPROM interface options.
Revision 2.2 (02-17-12)
28
DATASHEET
SMSC USB251xB/xBi