lan9211 Standard Microsystems Corp., lan9211 Datasheet - Page 16

• Manufacturer Part Number: lan9211
• Description: Lan9211 High-performance Small Form Factor Single-chip Ethernet Controller With Hp Auto-mdix Support
• Manufacturer: Standard Microsystems Corp.

Revision 2.3 (08-06-08)
EEPROM Clock,
EEPROM Data,
GPO3, TX_EN,
EEPROM Chip
GPO4 RX_DV,
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
High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support
16
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
SMSC LAN9211
Datasheet