LAN9312-NZW SMSC, LAN9312-NZW Datasheet - Page 147

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

Specifications of LAN9312-NZW

• 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): 186 mA, 295 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312
10.2.3.5
10.2.3.6
EECLK
EEDO
EECS
EEDI
EECLK
EEDO
EECS
EEDI
EWEN (Erase/Write Enable)
This command enables the EEPROM for erase and write operations. The EEPROM will allow erase
and write operations until the EWDS command is sent, or until power is cycled.
Note: The EEPROM will power-up in the erase/write disabled state. Any erase or write operations
READ (Read Location)
This command will cause a read of the EEPROM location pointed to by the EPC_ADDRESS field of
the
Register
EEPROM Command Register
will fail until an EWEN command is issued.
(E2P_DATA).
1
1
1
Figure 10.10 EEPROM EWEN Cycle
Figure 10.11 EEPROM READ Cycle
0
0
(E2P_CMD). The result of the read is available in the
DATASHEET
Ax
0
147
1
A0
1
D7
D0
Revision 1.7 (06-29-10)
EEPROM Data