LAN9513I-JZX SMSC, LAN9513I-JZX Datasheet - Page 30

• Manufacturer Part Number: LAN9513I-JZX
• Description: Ethernet ICs USB 2.0 Hub 10/100 Controller Ind Temp
• Manufacturer: SMSC

Specifications of LAN9513I-JZX

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.0 (11-24-09)
BITS
BITS
BITS
7:4
2:0
7:2
1:0
7:6
3
RESERVED
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
RESERVED
RESERVED
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)
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)
Table 3.6 Config Data Byte 3 Register (CFG3) Format
Table 3.7 Boost_Up Register (BOOSTUP) Format
Table 3.8 Boost_4:2 Register (BOOST42) Format
DESCRIPTION
DESCRIPTION
DESCRIPTION
DATASHEET
30
USB 2.0 Hub and 10/100 Ethernet Controller
SMSC LAN9513/LAN9513i
DEFAULT
DEFAULT
DEFAULT
000000b
000b
00b
00b
0h
0b
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