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DESCRIPTION

The STE100P, also referred to as STEPHY1, is a high performance Fast Ethernet physical layer interface for 10Base-T and 100Base-TX applications.

It was designed with advanced CMOS technology to provide a Media Independent Interface (MII) for easy attachment to 10/100 Media Access Controllers (MAC) and a physical media interface for 100Base-TX of IEEE802.3u and 10Base-T of IEEE802.3.

FEATURES

Industry standard

■ IEEE802.3u 100Base-TX and IEEE802.3 10Base-T compliant

■ Support for IEEE802.3x flow control

■ IEEE802.3u Auto-Negotiation support for 10Base-T and 100Base-TX

■ MII interface

■ Standard CSMA/CD or full duplex operation supported

■ Industrial temperature compliant

Physical Layer

■ Integrates the whole Physical layer functions of 100Base-TX and 10Base-T

■ Provides Full-duplex operation on both 100Mbps and 10Mbps modes

■ Provides Auto-negotiation(NWAY) function of full/half duplex operation for both 10 and 100 Mbps

■ Provides MLT-3 transceiver with DC restoration for Base-line wander compensation

■ Provides transmit wave-shaper, receive filters, and adaptive equalizer

■ Provides loop-back modes for diagnostic

■ Builds in Stream Cipher Scrambler/ De-scrambler and 4B/5B encoder/decoder

■ Supports external transmit transformer with turn ratio 1:1

■ Supports external receive transformer with turn ratio 1:1

LED Display

The LED display, consists of five LEDs having the following characteristics:

■ 10 Mbps Speed LED: 10Mbps(on) or 100Mbps(off)

■ 100 Mbps Speed LED: 100Mbps(on) or 10Mbps(off)

■ TX/RX Activity LED: Blinks at 10Hz when receiving, but not colliding

■ Link LED: On when a good link is detected, blinks when there is TX or RX activity

■ Full Duplex / Collision LED: On during Full Duplex operation. Blinks at 20Hz to indicate a collision

Miscellaneous

■ Standard 64-pin QFP package pinout