Datasheet
Table 2.1 MII Interface Pins (continued)
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| BUFFER |
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NUM PINS | NAME | SYMBOL | TYPE | DESCRIPTION | |
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| Transmit Data | TXD3 | O8 | Transmit Data 3: In external PHY mode, this pin |
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| 3 |
| (PU) | functions as the transmit data 3 output to the |
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| (External |
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| external PHY. |
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| PHY Mode) |
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| General | GPIO7 | IS/O8/ | General Purpose I/O 7 |
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| Purpose I/O 7 |
| OD8 |
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| (Internal PHY |
| (PU) |
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| Mode Only) |
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| EEPROM | EEP_SIZE | IS | EEPROM SIZE: The EEP_SIZE strap selects the |
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| Size |
| (PU) | size of the EEPROM attached to the |
1 |
| Configuration |
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| LAN9500/LAN9500i. |
| Strap |
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| 0 = 128 byte EEPROM is attached and a total of | |
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| seven address bits are used. |
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| 1 = 256/512 byte EEPROM is attached and a |
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| total of nine address bits are used. |
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| Note: A |
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| is organized for 128 x |
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| See Note 2.1 for more information on |
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| configuration straps. |
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| Transmit Data | TXD2 | O8 | Transmit Data 2: In external PHY mode, this pin |
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| 2 |
| (PD) | functions as the transmit data 2 output to the |
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| (External |
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| external PHY. |
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| PHY Mode) |
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| General | GPIO6 | IS/O8/ | General Purpose I/O 6 |
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| Purpose I/O 6 |
| OD8 |
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| (Internal PHY |
| (PU) |
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| Mode Only) |
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1 |
| USB Port | PORT_SWAP | IS | USB Port Swap Configuration Strap: Swaps |
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| Swap |
| (PD) | the mapping of USBDP and USBDM. |
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| Configuration |
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| 0 = USBDP maps to the USB D+ line and |
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| Strap |
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| USBDM maps to the USB D- line. | |
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| 1 = USBDP maps to the USB D- line. USBDM |
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| maps to the USB D+ line. |
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| See Note 2.1 for more information on |
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| configuration straps. |
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SMSC LAN9500/LAN9500i | 11 | Revision 1.7 |
| DATASHEET |
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