TNETE2004 MDIO-MANAGED QuadPHY FOUR 10BASE-T PHYSICAL-LAYER INTERFACES

SPWS023D - OCTOBER 1996 - REVISED OCTOBER 1997

features

Single-Chip Multi-PHY Solution:
- Four 10BASE-T Physical-Layer (PHY) Interfaces in One Package Minimizing PCB Footprint for Internetworking Applications
Each PHY is Half-Duplex and Full-Duplex Compliant
- Full-Duplex: Independent Transmit and Receive Channels for Operation at 20-Mbit/s Aggregate
Compliant With IEEE Std 802.3 10BASE-T Specification
Management Data Input/Output (MDIO) Serial Compliant With IEEE Std 802.3 Media-Independent Interface (MII)
Integrated Filters on Both Receive and Transmit Circuits
- No External Filters Are Required
- Meets IEEE Std 802.3 (Section 14.3) Electrical Requirements
Implements IEEE Std 802.3u Auto-Negotiation to Establish the Highest Common Protocol
DSP-Based Digital Phase-Locked Loop (PLL)
Interrupt Feature on MDIO
Loopback Mode for Test Operations
Integrated Manchester Encoding/Decoding
Receive-Clock Regeneration for All Input Channels
Smart Squelch
Transmit Pulse Shaping
Collision Detection
Jabber Detection
Link-Pulse Detection
Auto-Polarity Control
Simple Connection for LED Status Indicators
Sufficient Current Drive to Directly Connect LED Status Indicators
CMOS Technology Enables Low Power Consumption
Power-Down Mode
IEEE Std 1149.1 (JTAG) Test-Access Port (TAP)
Each Serial Network Interface (SNI) Signal Is User Programmable
Package Options Include 120-Pin Plastic Quad Flat Package (PBE) and 128-Pin Plastic Quad Flat Package (PAC)
IEEE Std 1149.1-1990, IEEE Standard Test-Access Port and Boundary-Scan Architecture

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

The TNETE2004 provides PHY-interface functions for up to four 10BASE-T half- or full-duplex ports as shown in Figure 1. The TNETE2004 contains four independent 10BASE-T transceivers in a single chip. Each transceiver is compliant with IEEE Std 802.3, Section 14, and a compliant management serial-interface port provides information for network management.

A typical application with external components is shown in Figure 2.

Title: MDIOT MANAGED QUADPHY 10 BASE-T QUADPHY
Product Family: NETWORKING COMPONENTS
Device Functionality: ETHERNET SWITCHING
Orderable Devices: TNETE2004PAC, TNETE2004PBE

View the complete PDF datasheet: spws023d.pdf (679 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:TNETE2004

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