STE100P datasheet(2/31 Pages) STMICROELECTRONICS

2 / 31 page

STE100P

2/31

2.2

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

2.3

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

2.4

Miscellaneous

■ Standard 64-pin QFP package pinout

Figure 3. System Diagram of the STE100P Application

Boot ROM

25 MHz

Crystal

RJ-45

STE100P

STEPHY1

Serial

EEPROM

LEDs

MAC

Device

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