LAN9115_05 SMSC [SMSC Corporation], LAN9115_05 Datasheet - Page 35

• Manufacturer Part Number: LAN9115_05
• Description: Highly Efficient Single- Chip 10/100 Non-PCI Ethernet Controller
• Manufacturer: SMSC [SMSC Corporation]

Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller
Datasheet
SMSC LAN9115
EEDIO (OUTPUT)
EEDIO (INPUT)
EEDIO (OUTPUT)
EWDS (Erase/Write Disable): After issued, the EEPROM will ignore erase and write commands. To
re-enable erase/write operations issue the EWEN command.
EWEN (Erase/Write Enable): Enables the EEPROM for erase and write operations. The EEPROM
will allow erase and write operations until the “Erase/Write Disable” command is sent, or until power
is cycled.
Note: The EEPROM device will power-up in the erase/write-disabled state. Any erase or write
EEDIO (INPUT)
EECLK
EECS
operations will fail until an Erase/Write Enable command is issued.
EECLK
EECS
1
Figure 3.6 EEPROM EWDS Cycle
Figure 3.7 EEPROM EWEN Cycle
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DATASHEET
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Revision 1.1 (05-17-05)
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