lan9312 Standard Microsystems Corp., lan9312 Datasheet - Page 146

• Manufacturer Part Number: lan9312
• Description: Lan9312 High Performance Two Port 10/100 Managed Ethernet Switch With 32-bit Non-pci Cpu Interface
• Manufacturer: Standard Microsystems Corp.

Revision 1.2 (04-08-08)
10.2.3.3
EECLK
10.2.3.4
EEDO
EECS
EEDI
EECLK
EEDO
EECS
EEDI
ERAL (Erase All)
If erase/write operations are enabled in the EEPROM, this command will initiate a bulk erase of the
entire EEPROM. The EPC_TIMEOUT bit of the
EEPROM does not respond within 30mS.
EWDS (Erase/Write Disable)
After this command is issued, the EEPROM will ignore erase and write commands. To re-enable
erase/write operations, the EWEN command must be issued.
1
0
1
0
Figure 10.9 EEPROM EWDS Cycle
Figure 10.8 EEPROM ERAL Cycle
0
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
1
DATASHEET
0
0
146
0
EEPROM Command Register (E2P_CMD)
0
SMSC LAN9312
is set if the
Datasheet