Level One LXT972
The LXT972 is an IEEE compliant Fast Ethernet PHY Transceiver that directly supports both 100BASE-TX and 10BASE-T applications. It provides a Media Independent Interface (MII) for easy attachment to 10/100 Media Access Controllers (MACs). The LXT972 supports full-duplex operation at 10 Mbps and 100 Mbps.GENERAL DESCRIPTION
Its operating condition can be set using auto-negotiation, parallel detection, or manual control. The LXT972 is fabricated with an advanced CMOS process and requires only a single 3.3V power supply. Revision 1.1FEATURES
● 3.3V Operation.● Low power consumption (300 mW typical).
● 10BASE-T and 100BASE-TX using a single RJ-45 connection.
● Supports auto-negotiation and parallel detection.
● MII interface with extended register capability.
● Robust baseline wander correction performance.
● Standard CSMA/CD or full-duplex operation.
● Configurable via MDIO serial port or hardware control pins.
● Integrated, programmable LED drivers.
● 64-pin Low-profile Quad Flat Package (LQFP).
● LXT972LC - Commercial (0° to 70°C ambient).
APPLICATIONS
● Combination 10BASE-T/100BASE-TX Network Interface Cards (NICs)● 10/100 PCMCIA Cards
● Cable Modems and Set-Top Boxes LXT972 Block Diagram RESET ADDR0 MDIO MDC MDINT MDDIS TX_EN TX PCS T X D <3:0> TX_ER TX_CLK Parallel/Serial Convert...