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Datasheet
Table 2.2 EEPROMNUM |
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| BUFFER |
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PINS | NAME | SYMBOL | TYPE | DESCRIPTION |
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| EEPROM Data | EEDIO | IS/O8 | EEPROM Data: This |
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| to an optional serial EEPROM DIO. |
| GPO3 | GPO3 | O8 | General Purpose Output 3: This pin can also function |
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| as a general purpose output. The EECS pin is deasserted |
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| so as to never unintentionally access the serial EEPROM. |
1 | TX_EN | TX_EN | O8 | TX_EN Signal Monitor: This pin can also be configured |
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| to monitor the TX_EN signal on the internal MII port. The | |
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| EECS pin is deasserted so as to never unintentionally |
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| access the serial EEPROM. |
| TX_CLK | TX_CLK | O8 | TX_CLK Signal Monitor: This pin can also be configured |
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| to monitor the TX_CLK signal on the internal MII port. |
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| The EECS pin is deasserted so as to never |
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| unintentionally access the serial EEPROM. |
1 | EEPROM Chip | EECS | O8 | Serial EEPROM Chip Select. |
Select |
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| EEPROM | EECLK | IS/O8 | EEPROM Clock: Serial EEPROM Clock pin |
| Clock |
| (PU) |
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| GPO4 | GPO4 | O8 | General Purpose Output 4: This pin can also function |
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| as a general purpose output. The EECS pin is deasserted |
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| so as to never unintentionally access the serial EEPROM. |
1 | RX_DV | RX_DV | O8 | RX_DV Signal Monitor: This pin can also be configured |
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| to monitor the RX_DV signal on the internal MII port. The |
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| EECS pin is deasserted so as to never unintentionally |
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| access the serial EEPROM. |
| RX_CLK | RX_CLK | O8 | RX_CLK Signal Monitor: This pin can also be |
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| configured to monitor the RX_CLK signal on the internal |
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| MII port. The EECS pin is deasserted so as to never |
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| unintentionally access the serial EEPROM. |
Note 2.1 This pin is used for factory testing and is latched on power up. This pin is pulled high through an internal resistor and must not be pulled low externally. This pin must be augmented with an external resistor when connected to a load. The value of the resistor must be such that the pin reaches its valid level before
SMSC LAN9420/LAN9420i | 17 | Revision 1.22 |
| DATASHEET |
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