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LAN9312 Datasheet(PDF) 147 Page - SMSC Corporation |
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LAN9312 Datasheet(HTML) 147 Page - SMSC Corporation |
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147 / 458 page  High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface Datasheet SMSC LAN9312 147 Revision 1.2 (04-08-08) DATASHEET 10.2.3.5 EWEN (Erase/Write Enable) This command enables the EEPROM for erase and write operations. The EEPROM will allow erase and write operations until the EWDS command is sent, or until power is cycled. Note: The EEPROM will power-up in the erase/write disabled state. Any erase or write operations will fail until an EWEN command is issued. 10.2.3.6 READ (Read Location) This command will cause a read of the EEPROM location pointed to by the EPC_ADDRESS field of the EEPROM Command Register (E2P_CMD). The result of the read is available in the EEPROM Data Register (E2P_DATA). Figure 10.10 EEPROM EWEN Cycle Figure 10.11 EEPROM READ Cycle 0 10 11 EECLK EEDI EEDO EECS 1 10 Ax A0 D7 D0 EECLK EEDI EEDO EECS |
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