USB Hub with Integrated 10/100 Ethernet Controller
Datasheet
3.1.1Hub Configuration
EEPROM offsets 20h through 39h comprise the Hub Configuration parameters. Table 3.3 describes these parameters and their default ROM values (Values assumed if no valid EEPROM present).
Table 3.3 Hub Configuration
EEPROM |
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OFFSET |
| DESCRIPTION | DEFAULT |
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20h | Vendor ID LSB Register (VIDL) | 24h | |
| Least Significant Byte of the Vendor ID. This is a |
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| the Vendor of the user device (assigned by |
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21h | Vendor ID MSB (VIDM) | 04h | |
| Most Significant Byte of the Vendor ID. This is a |
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| the Vendor of the user device (assigned by |
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22h | Product ID LSB Register (PIDL) | 14h | |
| Least Significant Byte of the Product ID. This is a |
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| assign that uniquely identifies this particular product (assigned by the OEM). |
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23h | Product ID MSB Register (PIDM) | 95h | |
| Most Significant Byte of the Product ID. This is a |
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| assign that uniquely identifies this particular product (assigned by the OEM). |
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24h | Device ID LSB Register (DIDL) | 00h | |
| Least Significant Byte of the Device ID. This is a |
| |
| format (assigned by the OEM). |
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25h | Device ID MSB Register (DIDM) | ||
| Most Significant Byte of the Device ID. This is a |
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| format (assigned by the OEM). |
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26h | Config Data Byte 1 Register (CFG1) | 9Bh | |
| Refer to Table 3.4, “Config Data Byte 1 Register (CFG1) Format,” on page 29 for |
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| details. |
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27h | Config Data Byte 2 Register (CFG2) | 18h | |
| Refer to Table 3.5, “Config Data Byte 2 Register (CFG2) Format,” on page 30 for |
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| details. |
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28h | Config Data Byte 3 Register (CFG3) | 00h | |
| Refer to Table 3.6, “Config Data Byte 3 Register (CFG3) Format,” on page 31 for |
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| details. |
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29h | 02h | ||
| Indicates which port(s) include |
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| 0 = Port is removable |
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| 1 = Port is |
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| Informs the host if one of the active ports has a permanent device that is not |
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| detachable from the Hub. |
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| Note: | The device must provide its own descriptor data. |
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| Bit 7 = RESERVED |
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| Bit 6 = RESERVED |
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| Bit 5 = 1; Port 5 |
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| Bit 4 = 1; Port 4 |
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| Bit 3 = 1; Port 3 |
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| Bit 2 = 1; Port 2 |
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| Bit 1 = 1; Port 1 |
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| Bit 0 is RESERVED, always = 0b |
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| Note: | Bit 1 must be set to 1 by firmware for proper identification of the Ethernet |
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| Controller as a |
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SMSC LAN9514 | 23 | Revision 1.0 |
| DATASHEET |
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