LAN9500 Datasheet, PDF (86/213 Pages) SMSC Corporation – USB 2.0 to 10/100 Ethernet Controller Promiscuous mode

LAN950x
FIGURE 5-25:
EEPROM READ CYCLE
EECS
EECLK
EEDIO (OUTPUT)
EEDIO (INPUT)
1
1
0
A6
A0
D7
tCSL
D0
WRITE (Write Location): If erase/write operations are enabled in the EEPROM, this command will cause the contents
of the E2P_DATA register to be written to the EEPROM location selected by the EPC Address field (EPC_ADDR). The
EPC_TO bit is set if the EEPROM does not respond within 30mS.
FIGURE 5-26:
EEPROM WRITE CYCLE
EECS
EECLK
EEDIO (OUTPUT)
EEDIO (INPUT)
1
0
1
A6
A0
D7
tCSL
D0
WRAL (Write All): If erase/write operations are enabled in the EEPROM, this command will cause the contents of the
E2P_DATA register to be written to every EEPROM memory location. The EPC_TO bit is set if the EEPROM does not
respond within 30mS.
DS00001875A-page 86
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