STE100P

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2.2 Physical Layer

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

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

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

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

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

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Provides loop-back modes for diagnostic

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

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Supports external transmit transformer with turn ratio 1:1

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Supports external receive transformer with turn ratio 1:1

2.3 LED Display

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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)

2.4 Miscellaneous

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Standard 64-pin QFP package pinout

Figure 2. System Diagram of the STE100P Application

Boot ROM

25 MHz

Crystal

RJ-45

STE100P

STEPHY1

Serial

EEPROM

LEDs

MAC

Device