DJLXT901LC.E2 S E001 Intel, DJLXT901LC.E2 S E001 Datasheet - Page 11

• Manufacturer Part Number: DJLXT901LC.E2 S E001
• Manufacturer: Intel

Specifications of DJLXT901LC.E2 S E001

• Lead Free Status / RoHS Status: Not Compliant

2.0
Datasheet
Document #: 249097
Revision #: 002
Rev. Date: June 19, 2001
1. I/O Column Coding: I = Input, O = Output, OD = Open Drain
PLCC
41
42
43
44
Table 1.
–
1, 2, 6,
16, 17,
20, 30,
31, 32,
33, 41,
43, 48,
49, 50,
60, 63,
LQFP
64
4
5
7
8
LXT901/907 Signal Descriptions (Continued)
Functional Description
The LXT901/907 Universal 10BASE-T and AUI Transceivers perform the physical layer signaling
(PLS) and Media Attachment Unit (MAU) functions as defined by the IEEE 802.3 specification.
They function as PLS-only devices (for use with 10BASE-2 or 10BASE-5 coaxial cable networks),
or as Integrated PLS/MAU devices (for use with 10BASE-T twisted-pair networks). In addition to
standard 10 Mbps operation, they also support full-duplex 20 Mbps operation. Unless otherwise
noted, all the information in this data sheet applies to both the LXT901 and LXT907.
The LXT901/907 interfaces a back-end controller to either an AUI drop cable or a twisted-pair
cable. The controller interface includes transmit and receive clocks and NRZ data channels, as well
as mode control logic and signaling. The AUI interface comprises three circuits: Data Output
(DO), Data Input (DI), and Collision (CI). The twisted-pair interface comprises two circuits:
Twisted-Pair Input (TPI) and Twisted-Pair Output (TPO). In addition to the three basic interfaces,
the LXT901/907 contains an internal crystal oscillator and four LED drivers for visual status
reporting.
Functions are defined from the back-end controller side of the interface. The Transmit function
refers to data transmitted by the back-end to the AUI cable (PLS-only mode), or to the twisted-pair
network (Integrated PLS/MAU mode). The Receive function refers to data received by the back-
end from the AUI cable (PLS-only), or from the twisted-pair network (Integrated PLS/MAU
mode). In the integrated PLS/MAU mode, the LXT901/907 performs all required MAU functions
defined by the IEEE 802.3 10BASE–T specification, such as collision detection, link integrity
testing, signal quality error messaging, jabber control, and loopback. In the PLS-only mode, the
LXT901/907 receives incoming signals from the AUI DI circuit with ± 18 ns of jitter and drives the
AUI DO circuit.
Symbol
DON
DOP
DIN
N/C
DIP
I/O
O
O
–
I
I
AUI Receive Pair. Differential input pair from the AUI transceiver DI circuit. The
input is Manchester encoded.
AUI Transmit Pair. A differential output driver pair for the AUI transceiver cable.
The output is Manchester encoded.
No Connect (Internally tied to ground).
Universal 10BASE-T and AUI Transceivers — LXT901/907
Description
11