參數(shù)資料
型號(hào)： 82559
廠商： INTEL CORP
元件分類： 微控制器/微處理器
英文描述： Fast Ethernet Multifunction PCI/CARD bus controller(快速以太網(wǎng)多功能PCI/CARD 總線控制器)
中文描述： 1 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PBGA196
封裝： 15 X 15 MM, BGA-196
文件頁(yè)數(shù)： 22/124頁(yè)
文件大?。?/td> 1332K
代理商： 82559
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82559 — Networking Silicon
12
Datasheet
3.4
System Management Bus (SMB) Interface Signals
3.5
Testability Port Signals
3.6
PHY Signals
Symbol
Type
Name and Function
SMBD
IN
O/D
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
CC
in all
cases.
SMBCLK
IN
O/D
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
CC
in all cases.
SMBALRT#
O/D
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
CC
in all cases.
Symbol
Type
Name and Function
TEST
IN
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.
TCK
IN
Test Port Clock.
This pin is used for the Test Port Clock signal.
TI
IN
Test Port Data Input.
This pin is used for the Test Port Data Input
signal.
TEXEC
IN
Test Port Execute Enable.
This pin is used for the Test Port Execute
Enable signal.
TO
OUT
Test Port Data Output.
This pin is used for the Test Port Data Output
signal.
Symbol
Type
Name and Function
X1
A/I
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.
X2
A/O
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.
TDP
TDN
A/O
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.
RDP
RDN
A/I
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.
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