LAN9512I-JZX SMSC, LAN9512I-JZX Datasheet - Page 23

• Manufacturer Part Number: LAN9512I-JZX
• Description: Ethernet ICs Hi-Speed USB 2.0 Hub High 10/100 Ethernet
• Manufacturer: SMSC

Specifications of LAN9512I-JZX

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

USB 2.0 Hub and 10/100 Ethernet Controller
Datasheet
SMSC LAN9512/LAN9512i
3.1.1
EEPROM
OFFSET
20h
21h
22h
23h
24h
25h
26h
27h
28h
29h
Hub Configuration
EEPROM offsets 20h through 39h comprise the Hub Configuration parameters.
these parameters and their default ROM values (Values assumed if no valid EEPROM present).
Vendor ID LSB Register (VIDL)
Least Significant Byte of the Vendor ID. This is a 16-bit value that uniquely identifies
the Vendor of the user device (assigned by USB-Interface Forum).
Vendor ID MSB (VIDM)
Most Significant Byte of the Vendor ID. This is a 16-bit value that uniquely identifies
the Vendor of the user device (assigned by USB-Interface Forum).
Product ID LSB Register (PIDL)
Least Significant Byte of the Product ID. This is a 16-bit value that the Vendor can
assign that uniquely identifies this particular product (assigned by the OEM).
Product ID MSB Register (PIDM)
Most Significant Byte of the Product ID. This is a 16-bit value that the Vendor can
assign that uniquely identifies this particular product (assigned by the OEM).
Device ID LSB Register (DIDL)
Least Significant Byte of the Device ID. This is a 16-bit device release number in BCD
format (assigned by the OEM).
Device ID MSB Register (DIDM)
Most Significant Byte of the Device ID. This is a 16-bit device release number in BCD
format (assigned by the OEM).
Config Data Byte 1 Register (CFG1)
Refer to
details.
Config Data Byte 2 Register (CFG2)
Refer to
details.
Config Data Byte 3 Register (CFG3)
Refer to
details.
Non-Removable Devices Register (NRD)
Indicates which port(s) include non-removable devices.
0 = Port is removable
1 = Port is non-removable
Informs the host if one of the active ports has a permanent device that is not
detachable from the Hub.
Note:
Bit 7 = RESERVED
Bit 6 = RESERVED
Bit 5 = RESERVED
Bit 4 = RESERVED
Bit 3 = 1; Port 3 non-removable
Bit 2 = 1; Port 2 non-removable
Bit 1 = 1; Port 1 non-removable
Bit 0 is RESERVED, always = 0b
Note:
Table 3.4, “Config Data Byte 1 Register (CFG1) Format,” on page 28
Table 3.5, “Config Data Byte 2 Register (CFG2) Format,” on page 29
Table 3.6, “Config Data Byte 3 Register (CFG3) Format,” on page 30
The device must provide its own descriptor data.
Bit 1 must be set to 1 by firmware for proper identification of the Ethernet
Controller as a non-removable device.
Table 3.3 Hub Configuration
DATASHEET
DESCRIPTION
23
for
for
for
Revision 1.0 (11-24-09)
Table 3.3
DEFAULT
Note 3.1
9Bh
24h
04h
12h
95h
00h
18h
00h
02h
describes