LAN9218I_07 SMSC [SMSC Corporation], LAN9218I_07 Datasheet - Page 35
LAN9218I_07
Manufacturer Part Number
LAN9218I_07
Description
High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX and Industrial Temperature Support
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.LAN9218I_07.pdf
(133 pages)
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High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX and Industrial Temperature Support
Datasheet
SMSC
3.8.2.2
3.8.2.3
3.8.2.4
EEDIO (OUTPUT)
EEDIO (INPUT)
LAN9218i
EECLK
EECS
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.
Table 3.8, "Required EECLK
each EEPROM operation.
MAC Address Reload
The MAC address can be reloaded from the EEPROM via a host command to the E2P_CMD register.
If a value of 0xA5h is not found in the first address of the EEPROM, the EEPROM is assumed to be
un-programmed and MAC Address Reload operation will fail. The “MAC Address Loaded” bit indicates
a successful load of the MAC address. The EPC_LOAD bit is set after a successful reload of the MAC
address.
EEPROM Command and Data Registers
Refer to
"E2P_DATA – EEPROM Data Register," on page 94
Supported EEPROM operations are described in these sections.
EEPROM Timing
Refer to
OPERATION
ERASE
WRITE
EWDS
EWEN
READ
WRAL
ERAL
Section 5.3.23, "E2P_CMD – EEPROM Command Register," on page 92
Section 6.9, "EEPROM Timing," on page 125
1
0
0
Table 3.8 Required EECLK Cycles
Figure 3.9 EEPROM WRAL Cycle
0
Cycles", shown below, shows the number of EECLK cycles required for
1
DATASHEET
35
REQUIRED EECLK CYCLES
D7
for detailed EEPROM timing specifications.
for a detailed description of these registers.
D0
10
10
10
10
18
18
18
t
CSL
Revision 1.8 (06-06-07)
and
Section 5.3.24,
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