GD82559C S L3DF Intel, GD82559C S L3DF Datasheet - Page 20
GD82559C S L3DF
Manufacturer Part Number
GD82559C S L3DF
Description
Manufacturer
Intel
Datasheet
1.GD82559C_S_L3DF.pdf
(120 pages)
Specifications of GD82559C S L3DF
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82559 — Networking Silicon
3.4
3.5
3.6
12
System Management Bus (SMB) Interface Signals
Testability Port Signals
PHY Signals
SMBD
SMBCLK
SMBALRT#
TEST
TCK
TI
TEXEC
TO
X1
X2
TDP
TDN
RDP
RDN
Symbol
Symbol
Symbol
IN
O/D
IN
O/D
O/D
IN
IN
IN
IN
OUT
A/I
A/O
A/O
A/I
Type
Type
Type
Alert Bus Data. This signal is stable when the Alert Bus Clock signal
is high. This open drain signal should be pulled high to V
cases.
Alert Bus Clock. This pin is used for the Alert Bus Clock signal. One
clock pulse is generated for each data bit transferred. It is an open
drain signal and should be pulled high to V
Bus Alert. The Bus Alert pin is used as an interrupt signal for a slave
device on the Alert Bus. It is an open drain signal and should be pulled
high to V
Test Port. If this input pin is high, the 82559 will enable the test port.
During nominal operation this pin should be connected to a pull-down
resistor.
Test Port Clock. This pin is used for the Test Port Clock signal.
Test Port Data Input. This pin is used for the Test Port Data Input
signal.
Test Port Execute Enable. This pin is used for the Test Port Execute
Enable signal.
Test Port Data Output. This pin is used for the Test Port Data Output
signal.
Crystal Input One. X1 and X2 can be driven by an external 3.3 V 25
MHz crystal. Otherwise, X1 may be driven by an external metal-oxide
semiconductor (MOS) level 25 MHz oscillator when X2 is left floating.
Crystal Input Two. X1 and X2 can be driven by an external 3.3 V 25
MHz crystal. Otherwise, X1 may be driven by an external MOS level
25 MHz oscillator when X2 is left floating.
Analog Twisted Pair Ethernet Transmit Differential Pair. These
pins transmit the serial bit stream for transmission on the Unshielded
Twisted Pair (UTP) cable. The current-driven differential driver can be
two-level (10BASE-T) or three-level (100BASE-TX) signals depending
on the mode of operation. These signals interface directly with an
isolation transformer.
Analog Twisted Pair Ethernet Receive Differential Pair. These pins
receive the serial bit stream from the isolation transformer. The bit
stream can be two-level (10BASE-T) or three-level (100BASE-TX)
signals depending on the mode of operation.
CC
in all cases.
Name and Function
Name and Function
Name and Function
CC
in all cases.
CC
in all
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