STE100P Datasheet, PDF (2/29 Pages) STMicroelectronics – 10/100 FAST ETHERNET 3.3V TRANSCEIVER

STE100P
2.2 Physical Layer
n Integrates the whole Physical layer functions of 100BASE-TX and 10BASE-T
n Provides Full-duplex operation on both 100Mbps and 10Mbps modes
n Provides Auto-negotiation(NWAY) function of full/half duplex operation for both 10 and 100 Mbps
n Provides MLT-3 transceiver with DC restoration for Base-line wander compensation
n Provides transmit wave-shaper, receive filters, and adaptive equalizer
n Provides loop-back modes for diagnostic
n Builds in Stream Cipher Scrambler/ De-scrambler and 4B/5B encoder/decoder
n Supports external transmit transformer with turn ratio 1:1
n Supports external receive transformer with turn ratio 1:1
2.3 LED Display
n 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
n Standard 64-pin QFP package pinout
Figure 2. System Diagram of the STE100P Application
Serial
EEPROM
LEDs
MAC
Device
STE100P
STEPHY1
Boot ROM
25 MHz
Cr ystal
RJ-45
2/29