LAN9211_0711 SMSC [SMSC Corporation], LAN9211_0711 Datasheet - Page 17

• Manufacturer Part Number: LAN9211_0711
• Description: High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX
• Manufacturer: SMSC [SMSC Corporation]

High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX
Datasheet
SMSC
EEPROM Clock,
EEPROM Data,
GPO3, TX_EN,
EEPROM Chip
GPO4 RX_DV,
LAN9211
RX_CLK
TX_CLK
NAME
Select
RX_DV/RX_CLK
TX_EN/TX_CLK
EECLK/GPO4/
EEDIO/GPO3/
SYMBOL
EECS
Table 2.3 Serial EEPROM Interface Signals
BUFFER
TYPE
(PU)
I/O8
O8
O8
DATASHEET
17
NUM
PINS
1
1
1
EEPROM Data: This bi-directional pin can be
connected to a serial EEPROM DIO. This is
optional.
General Purpose Output 3: This pin can also
function as a general purpose output, or it can
be configured to monitor the TX_EN or
TX_CLK signals on the internal MII port. When
configured as a GPO signal, or as a
TX_EN/TX_CLK monitor, the EECS pin is
deasserted so as to never unintentionally
access the serial EEPROM. This signal cannot
function as a general-purpose input.
Serial EEPROM chip select.
EEPROM Clock: Serial EEPROM Clock pin.
General Purpose Output 4: This pin can also
function as a general-purpose output, or it can
be configured to monitor the RX_DV or
RX_CLK signals on the internal MII port. When
configured as a GPO signal, or as an
RX_DV/RX_CLK monitor, the EECS pin is
deasserted so as to never unintentionally
access the serial EEPROM. This signal cannot
function as a general-purpose input.
Note:
Note:
When the EEPROM interface is not
used, the EECLK pin must be left
unconnected.
This pin must not be pulled low by an
external resistor or driven low
externally under any conditions.
DESCRIPTION
Revision 1.93 (11-27-07)