LAN9312-NU SMSC, LAN9312-NU Datasheet - Page 148

• Manufacturer Part Number: LAN9312-NU
• Description: Ethernet ICs Hi Per 2 Port 10/100 Ethernet Switch
• Manufacturer: SMSC
• Type: Two Port Managed Ethernet Switchr

Specifications of LAN9312-NU

• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Switches
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 Mbps, 100 Mbps
• Supply Voltage (max): 3.3 V
• Supply Voltage (min): 0 V
• Supply Current (max): 185 mA, 295 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.7 (06-29-10)
10.2.3.7
10.2.3.8
EECLK
EECLK
EEDO
EEDO
EECS
EECS
EEDI
EEDI
WRITE (Write Location)
If erase/write operations are enabled in the EEPROM, this command will cause the contents of the
EEPROM Data Register (E2P_DATA)
EPC_ADDRESS field of the
EEPROM Command Register (E2P_CMD)
WRAL (Write All)
If erase/write operations are enabled in the EEPROM, this command will cause the contents of the
EEPROM Data Register (E2P_DATA)
EPC_TIMEOUT bit of the
respond within 30mS.
1
1
0
0
0
1
0
Figure 10.12 EEPROM WRITE Cycle
Figure 10.13 EEPROM WRAL Cycle
Ax
EEPROM Command Register (E2P_CMD)
EEPROM Command Register
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
1
DATASHEET
A0
to be written to the EEPROM location pointed to by the
to be written to every EEPROM memory location. The
148
is set if the EEPROM does not respond within 30mS.
D7
D7
(E2P_CMD). The EPC_TIMEOUT bit of the
D0
D0
is set if the EEPROM does not
SMSC LAN9312
Datasheet