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 100BASETX of IEEE802.3u and 10BASE-T of IEEE802.3.

FEATURE

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

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

■ Provides 2 kinds of LED display mode:
• First mode - 3 LED displays for
♦ 100Mbps(on) or 10Mbps(off)
♦ Link(Keeps on when link ok) or Activity(Blink with 10Hz when receiving or transmitting but not collision)
♦ FD(Keeps on when in Full duplex mode) or Collision(Blink with 20Hz when colliding)
• Second mode – 4 LED displays for
♦ 100 Link(On when 100M link ok)
♦ 10 Link(On when 10M link ok)
♦ Activity (Blink with 10Hz when receiving or transmitting)
♦ FD(Keeps on when in Full duplex mode) or Collision(Blink with 20Hz when colliding)

Miscellaneous

■ Standard 64-pin QFP package pinout