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LAN9513 Datasheet(PDF) 32 Page - SMSC Corporation

Part # LAN9513
Description  USB 2.0 Hub and 10/100 Ethernet Controller
PDF  51 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

LAN9513 Datasheet(HTML) 32 Page - SMSC Corporation

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USB 2.0 Hub and 10/100 Ethernet Controller
Datasheet
Revision 1.2 (02-29-12)
32
SMSC LAN9513/LAN9513i
DATASHEET
Table 3.6 Config Data Byte 3 Register (CFG3) Format
BITS
DESCRIPTION
DEFAULT
7:4
RESERVED
0h
3
Port Re-Mapping Enable (PRTMAP_EN)
Selects the method used by the Hub to assign port numbers and disable ports.
0 = Standard Mode. The following EEPROM addresses are used to define which ports
are enabled. The ports mapped as Port’n’ on the Hub are reported as Port’n’ to the
host, unless one of the ports is disabled, then the higher numbered ports are
remapped in order to report contiguous port numbers to the host.
EEPROM Address 2Ah: Port Disable for Self-Powered operation
EEPROM Address 2Bh: Port Disable for Bus-Powered operation
1 = Port Re-Map mode. The mode enables remapping via the following EEPROM
addresses:
EEPROM Address 36h: Port Remap 12
EEPROM Address 37h: Port Remap 34
0b
2:0
RESERVED
000b
Table 3.7 Boost_Up Register (BOOSTUP) Format
BITS
DESCRIPTION
DEFAULT
7:2
RESERVED
000000b
1:0
Upstream USB Electrical Signaling Drive Strength Boost Bit for Upstream Port
A (BOOST_IOUT_A)
00 = Normal electrical drive strength
01 = Elevated electrical drive strength (+4% boost)
10 = Elevated electrical drive strength (+8% boost)
11 = Elevated electrical drive strength (+12% boost)
00b
Table 3.8 Boost_4:2 Register (BOOST42) Format
BITS
DESCRIPTION
DEFAULT
7:6
Upstream USB Electrical Signaling Drive Strength Boost Bit for Downstream
Port 4 (BOOST_IOUT_4)
00 = Normal electrical drive strength
01 = Elevated electrical drive strength (+4% boost)
10 = Elevated electrical drive strength (+8% boost)
11 = Elevated electrical drive strength (+12% boost)
00b



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