SLXT914QC.B3 Intel, SLXT914QC.B3 Datasheet - Page 14

IC QUAD ETHERNET REPEATER 100QFP

SLXT914QC.B3

Manufacturer Part Number
SLXT914QC.B3
Description
IC QUAD ETHERNET REPEATER 100QFP
Manufacturer
Intel
Type
Repeaterr
Datasheet

Specifications of SLXT914QC.B3

Rohs Status
RoHS non-compliant
Tx/rx Type
Ethernet
Voltage - Supply
4.75 V ~ 5.25 V
Current - Supply
180mA
Mounting Type
Surface Mount
Package / Case
100-QFP
Delay Time
-
Capacitance - Input
-
Other names
831521

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Part Number:
SLXT914QC.B3
Manufacturer:
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Quantity:
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Intel
2.0
2.1
2.2
2.2.1
2.2.2
2.2.3
31-Oct-2005
14
®
LXT914 Flexible Quad Ethernet Repeater
Functional Description
Introduction
The LXT914 Repeater is an integrated hub repeater for 10BASE-T networks. The hub repeater is
the central point for information transfer across the network. The LXT914 Repeater offers multiple
operating modes to suit a broad range of applications ranging from simple 4-port stand-alone hubs
or attachments for print and file servers, up to intelligent 128-port enterprise systems with
microprocessor/gate arLXT914 Repeater ray management.
The main functions of the LXT914 Repeater hub repeater are data recovery and re-transmission
and collision propagation. Data packets received at the AUI or 10BASE-T ports are detected and
recovered by the port receivers before being passed to the repeater core circuitry for re-timing and
re-transmission. Data packets received through the IRB port are essentially passed directly to the
core for retransmission. After recovery of a valid data packet, the repeater broadcasts it to all
enabled stations, except the originator station.
External Interfaces
The LXT914 Repeater includes four 10BASE-T ports with internal filters. The LXT914 Repeater
also includes an Attachment Unit Interface (AUI) port, a serial port and an Inter-Repeater
Backplane (IRB) port. The serial port allows an external device such as an EEPROM to download
setup parameters to the repeater. In more complex designs the serial port can also be used to
monitor repeater status. The IRB port enables multiple LXT914 Repeater devices to be cascaded,
creating a large, multi-port repeater.
10BASE-T Ports
The four 10BASE-T transceiver ports are completely self-contained. Since the transmitters and
receivers include the required filtering, only simple, inexpensive transformers are required to
complete the 10BASE-T interface. Each individual Twisted-Pair (TP) port is implemented in
accordance with the IEEE 802.3 10BASE-T standard.
AUI Port
The AUI port mode is selectable (DTE mode or MAU mode). With DTE mode selected, the AUI
port allows connection of an external transceiver (10BASE2, 10BASE5, 10BASE-T or FOIRL) or
a drop cable. With MAU mode selected, the AUI port establishes a MAU output allowing direct
connection to another DTE interface.
Serial Port
The serial port provides the management interface to the LXT914 Repeater. Refer to Test
Specifications for serial port timing. The serial port can be either unidirectional or bidirectional,
depending on the management mode selected. In the Local management mode the serial port is
Intel
®
Order Number: 248989, Revision: 003
LXT914 Flexible Quad Ethernet Repeater
Datasheet

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