EVB-USB2512Q36-BAS SMSC, EVB-USB2512Q36-BAS Datasheet - Page 46
![BOARD EVAL FOR USB2512/USB2512I](/photos/9/10/91014/evb-usb2512q36-bas_sml.jpg)
EVB-USB2512Q36-BAS
Manufacturer Part Number
EVB-USB2512Q36-BAS
Description
BOARD EVAL FOR USB2512/USB2512I
Manufacturer
SMSC
Specifications of EVB-USB2512Q36-BAS
Main Purpose
Interface, USB 2.0 Hub
Embedded
No
Utilized Ic / Part
USB2512, USB2512I
Primary Attributes
Dual Port Hub, High Speed (480Mbps), I2C/SMBus
Secondary Attributes
Overcurrent Protection, Port Power Switching, ESD Protection
Interface Type
USB
Operating Supply Voltage
5 V
Product
Interface Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
USB2512
Other names
638-1041
EVB-USB2512Q36-BAS (USB2512/USB2512I)
EVB-USB2512Q36-BAS (USB2512/USB2512I)
Revision 1.1 (04-26-10)
8.2.1.29
NUMBER
NUMBER
BIT
BIT
1:0
7:6
5:4
3:2
1:0
Note: “Boost” could result in non-USB Compliant parameters, OEM should use a ‘00’ value unless
Register F8h: Boost_4:0
Note: “Boost” could result in non-USB Compliant parameters, OEM should use a ‘00’ value unless
BOOST_IOUT_5
BOOST_IOUT_4
BOOST_IOUT_3
BOOST_IOUT_2
BOOST_IOUT_1
BIT NAME
BIT NAME
specific implementation issues require additional signal boosting to correct for degraded USB
signalling levels.
specific implementation issues require additional signal boosting to correct for degraded USB
signalling levels.
USB electrical signaling drive strength Boost Bit for Downstream Port ‘5’.
‘00’ = Normal electrical drive strength = No boost
‘01’ = Elevated electrical drive strength = Low (~4% boost)
‘10’ = Elevated electrical drive strength = Medium (~ 8% boost)
‘11’ = Elevated electrical drive strength = High (~12% boost)
USB electrical signaling drive strength Boost Bit for Downstream Port ‘4’.
‘00’ = Normal electrical drive strength = No boost
‘01’ = Elevated electrical drive strength = Low (~4% boost)
‘10’ = Elevated electrical drive strength = Medium (~ 8% boost)
‘11’ = Elevated electrical drive strength = High (~12% boost)
USB electrical signaling drive strength Boost Bit for Downstream Port ‘3’.
‘00’ = Normal electrical drive strength = No boost
‘01’ = Elevated electrical drive strength = Low (~4% boost)
‘10’ = Elevated electrical drive strength = Medium (~ 8% boost)
‘11’ = Elevated electrical drive strength = High (~12% boost)
USB electrical signaling drive strength Boost Bit for Downstream Port ‘2’.
‘00’ = Normal electrical drive strength = No boost
‘01’ = Elevated electrical drive strength = Low (~4% boost)
‘10’ = Elevated electrical drive strength = Medium (~ 8% boost)
‘11’ = Elevated electrical drive strength = High (~12% boost)
USB electrical signaling drive strength Boost Bit for Downstream Port ‘1’.
‘00’ = Normal electrical drive strength = No boost
‘01’ = Elevated electrical drive strength = Low (~4% boost)
‘10’ = Elevated electrical drive strength = Medium (~ 8% boost)
‘11’ = Elevated electrical drive strength = High (~12% boost)
DATASHEET
46
DESCRIPTION
DESCRIPTION
USB 2.0 Hi-Speed Hub Controller
SMSC USB251x
Datasheet