LAN9221 Datasheet, PDF (41/151 Pages) SMSC Corporation – High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O

High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O
Datasheet
ERASE (Erase Location): If erase/write operations are enabled in the EEPROM, this command will
erase the location selected by the EPC Address field (EPC_ADDR). The EPC_TO bit is set if the
EEPROM does not respond within 30ms.
EECS
EECLK
EEDIO (OUTPUT)
EEDIO (INPUT)
t_CSL
1
1
1
A6
A0
Figure 3.5 EEPROM ERASE Cycle
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_TO bit is set if the EEPROM does not respond within
30ms.
t_CSL
EECS
EECLK
EEDIO (OUTPUT)
1
0
0
1
0
EEDIO (INPUT)
Figure 3.6 EEPROM ERAL Cycle
SMSC LAN9221/LAN9221i
41
DATASHEET
Revision 2.6 (12-04-08)