lan9118 Standard Microsystems Corp., lan9118 Datasheet - Page 16

• Manufacturer Part Number: lan9118
• Description: Lan9118 High-performance Single-chip 10/100 Non-pci Ethernet Controller
• Manufacturer: Standard Microsystems Corp.

Revision 1.5 (07-11-08)
NO.
PIN
NO.
PIN
67
68
79
78
83
82
87
PHY External Bias
EEPROM Data,
GPO3, TX_EN,
EEPROM Chip
D32/nD16
TX_CLK,
NAME
Resistor
Select
NAME
RXP
RXN
TXP
TXN
TX_EN/TX_CLK
Table 2.4 Serial EEPROM Interface Signals
EEDIO/GPO3/
(D32/nD16
SYMBOL
EXRES1
SYMBOL
TPO+
TPO-
TPI+
EECS
TPI-
Table 2.3 LAN Interface Signals
)
DATASHEET
BUFFER
TYPE
BUFFER
AO
AO
AI
AI
AI
TYPE
I/O8
16
High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
O8
NUM
PINS
NUM
PINS
1
1
1
1
1
1
1
Twisted Pair Transmit Output,
Positive
Twisted Pair Transmit Output,
Negative
Twisted Pair Receive Input, Positive
Twisted Pair Receive Input, Negative
Must be connected to ground through
a 12.4K ohm 1% resistor.
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.
Data Bus Width Select: This signal
also functions as a configuration
input on power-up and is used to
select the host bus data width. Upon
deassertion of reset, the value of the
input is latched. When high, a 32-bit
data bus is utilized. When low, a 16-
bit interface is utilized.
Serial EEPROM chip select.
DESCRIPTION
DESCRIPTION
SMSC LAN9118
Datasheet