EVB9512 SMSC, EVB9512 Datasheet - Page 46
EVB9512
Manufacturer Part Number
EVB9512
Description
EVALUATION BOARD FOR LAN9512
Manufacturer
SMSC
Specifications of EVB9512
Main Purpose
Interface, Ethernet Controller (PHY and MAC)
Embedded
No
Utilized Ic / Part
LAN9512
Primary Attributes
Single Chip Hi-Speed USB to 10/100 Ethernet
Secondary Attributes
Full Duplex and HP Auto-MDIX Support, 10BASE-T and 100BASE-TX
Other names
638-1093
EVB9512LC
EVB9512LC
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