TNETE2004_09 Datasheet, PDF (1/47 Pages) Texas Instruments – MDIO-MANAGED QuadPHY FOUR 10BASE-T PHYSICAL-LAYER INTERFACES

TNETE2004
MDIO-MANAGED QuadPHY
FOUR 10BASE-T PHYSICAL-LAYER INTERFACES
SPWS023D – OCTOBER 1996 – REVISED OCTOBER 1997
D Single-Chip Multi-PHY Solution:
– Four 10BASE-T Physical-Layer (PHY)
Interfaces in One Package Minimizing
PCB Footprint for Internetworking
Applications
D Each PHY is Half-Duplex and Full-Duplex
Compliant
– Full-Duplex: Independent Transmit and
Receive Channels for Operation at
20-Mbit/s Aggregate
D Compliant With IEEE Std 802.3 10BASE-T
Specification
D Management Data Input/Output (MDIO)
Serial Compliant With IEEE Std 802.3
Media-Independent Interface (MII)
D Integrated Filters on Both Receive and
Transmit Circuits
– No External Filters Are Required
– Meets IEEE Std 802.3 (Section 14.3)
Electrical Requirements
D Implements IEEE Std 802.3u
Auto-Negotiation to Establish the Highest
Common Protocol
D DSP-Based Digital Phase-Locked Loop
(PLL)
D Interrupt Feature on MDIO
D Loopback Mode for Test Operations
D Integrated Manchester Encoding/Decoding
D Receive-Clock Regeneration for All Input
Channels
D Smart Squelch
D Transmit Pulse Shaping
D Collision Detection
D Jabber Detection
D Link-Pulse Detection
D Auto-Polarity Control
D Simple Connection for LED Status
Indicators
D Sufficient Current Drive to Directly Connect
LED Status Indicators
D CMOS Technology Enables Low Power
Consumption
D Power-Down Mode
D IEEE Std 1149.1 (JTAG)^† Test-Access Port
(TAP)
D Each Serial Network Interface (SNI) Signal
Is User Programmable
D Package Options Include 120-Pin Plastic
Quad Flat Package (PBE) and 128-Pin
Plastic Quad Flat Package (PAC)
description
The TNETE2004 QuadPHY interface device is a single-chip, multi-PHY (four 10BASE-T devices),
high-performance solution for designers of 10BASE-T networking systems. The highly integrated TNETE2004
includes a user-programmable SNI signal for each PHY. Each PHY interface on the device provides Manchester
encoding/decoding of data via unshielded twisted-pair (UTP) balanced cable through simple isolation
transformers requiring no external filtering. Additional TNETE2004 features are smart squelch, jabber
detection, auto-polarity correction, transmission wave shaping, and anti-alias filtering capabilities. Each PHY
interface on the TNETE2004 is individually addressable within the TNETE2004 via the MDIO.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
† _{IEEE Std 1149.1-1990, IEEE Standard Test-Access Port and Boundary-Scan Architecture}
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright © 1997, Texas Instruments Incorporated
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