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| USB Hub with Integrated 10/100 Ethernet Controller |
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| Datasheet |
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| Table 2.5 Ethernet PHY Pins | ||
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NUM |
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| BUFFER |
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PINS | NAME |
| SYMBOL | TYPE | DESCRIPTION |
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| Ethernet TX |
| TXN | AIO | Negative output of the Ethernet transmitter. The |
1 | Data Out |
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| transmit data outputs may be swapped internally |
Negative |
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| with receive data inputs when | |
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| enabled. |
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| Ethernet TX |
| TXP | AIO | Positive output of the Ethernet transmitter. The |
1 | Data Out |
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| transmit data outputs may be swapped internally |
Positive |
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| with receive data inputs when | |
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| enabled. |
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| Ethernet RX |
| RXN | AIO | Negative input of the Ethernet receiver. The receive |
1 | Data In |
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| data inputs may be swapped internally with |
| Negative |
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| transmit data outputs when |
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| Ethernet RX |
| RXP | AIO | Positive input of the Ethernet receiver. The receive |
1 | Data In Positive |
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| data inputs may be swapped internally with |
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| transmit data outputs when |
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| +3.3V Analog |
| VDD33A | P | Refer to the LAN9514 reference schematics for |
7 | Power Supply |
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| connection information. |
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1 | External PHY |
| EXRES | AI | Used for the internal bias circuits. Connect to an |
Bias Resistor |
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| external 12.4K 1.0% resistor to ground. | |
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| Ethernet PLL |
| VDD18ETHPLL | P | Refer to the LAN9514 reference schematics for |
1 | +1.8V Power |
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| additional connection information. |
| Supply |
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| Table 2.6 I/O Power Pins, Core Power Pins, and Ground Pad | |||
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NUM |
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PINS | NAME |
| SYMBOL | TYPE | DESCRIPTION |
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| +3.3V I/O |
| VDD33IO | P | +3.3V Power Supply for I/O Pins. |
| Power |
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| Refer to the LAN9514 reference schematics for |
5 |
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| connection information. | |
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| Digital Core |
| VDD18CORE | P | +1.8 V power from the internal core voltage |
| +1.8V Power |
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| regulator. All VDD18CORE pins must be tied |
2 | Supply Output |
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| together for proper operation. |
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| Refer to the LAN9514 reference schematics for | |
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| connection information. |
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1 | Ground |
| VSS | P | Ground |
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| Note 2.1 | Exposed pad on package bottom (Figure 2.1). | |||
Revision 1.0 | 14 | SMSC LAN9514 |
| DATASHEET |
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