LAN9218-MT SMSC, LAN9218-MT Datasheet - Page 33

• Manufacturer Part Number: LAN9218-MT
• Description: CONTROLLER, ENET, 10/100, 100TQFP
• Manufacturer: SMSC

Specifications of LAN9218-MT

• Data Rate: 100Mbps
• No. Of Ports: 2
• Ethernet Type: IEEE 802.3 / 802.3u
• Supply Current: 40mA
• Supply Voltage Range: 2.97V To 3.63V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: TQFP
• Interface Type: HBI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX
Datasheet
SMSC
3.8.2.1
LAN9218
EEDIO (OUTPUT)
EEDIO (INPUT)
The host can disable the EEPROM interface through the GPIO_CFG register. When the interface is
disabled, the EEDIO and ECLK signals can be used as general-purpose outputs, or they may be used
to monitor internal MII signals.
Supported EEPROM Operations
The EEPROM controller supports the following EEPROM operations under host control via the
E2P_CMD register. The operations are commonly supported by “93C46” EEPROM devices. A
description and functional timing diagram is provided below for each operation. Please refer to the
E2P_CMD register description in
page 93
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.
EECLK
EECS
for E2P_CMD field settings for each command.
Busy Bit = 0
EEPROM Write
1
Figure 3.2 EEPROM Access Flow Diagram
Write Data
Command
Command
Register
Register
Register
Write
Read
Idle
1
1
DATASHEET
Section 5.3.23, "E2P_CMD – EEPROM Command Register," on
A6
33
A0
EEPROM Read
t
CSL
Read Data
Command
Command
Register
Register
Register
Write
Read
Idle
Busy Bit = 0
Revision 1.93 (11-27-07)