10Base-T/100Base-TX Integrated PHYceiver with RMII Interface

The ICS1894-32 is a low-power, physical-layer device(PHY) that supports the ISO/IEC 10Base-T and100Base-TX Carrier-Sense Multiple Access/CollisionDetection (CSMA/CD) Ethernet standards, ISO/IEC8802.3. It is intended for RMII/MII Node applications andincludes the Auto-MDIX feature that automatically correctscrossover errors in plant wiring. The ICS1894-32 incorporates Digital-Signal Processing(DSP) control in its Physical-Medium Dependent (PMD)sub-layer. As a result, it can transmit and receive data onunshielded twisted-pair (UTP) category 5 cables withattenuation in excess of 24 dB at 100MHz. The ICS1894-32 provides a Serial-Management Interfacefor exchanging command and status information with aStation-Management (STA) entity. The ICS1894-32Media-Dependent Interface (MDI) can be configured toprovide full-duplex operation at data rates of 10 Mb/s or100Mb/s.

• Supports category 5 cables and above with attenuation in excess of 24dB at 100 MHz.
• Single-chip, fully integrated PHY provides PCS, PMA, PMD, and AUTONEG sub layers functions of IEEE standard.
• 10Base-T and 100Base-TX ISO/IEC 8802.3 compliant
• MIIM (MDC/MDIO) management bus for PHY register configuration
• RMII interface support with external 50 MHz system clock
• Single 3.3V power supply
• Highly configurable, supports:
  • Media Independent Interface (MII)
  • Auto-Negotiation with Parallel detection
  • Node applications, managed or unmanaged
  • 10M or 100M full duplex modes *
  • Loopback mode for Diagnostic Functions
• Auto-MDI/MDIX crossover correction
• Low-power CMOS (typically 300 mW)
• Power-Down mode (typically 21mW)
• Clock and crystal supported in MII mode
• Programmable LEDs
• Interrupt output pin
• Fully integrated, DSP-based PMD includes:
  • Adaptive equalization and baseline-wander correction
  • Transmit wave shaping and stream cipher scrambler
  • MLT-3 encoder and NRZ/NRZI encoder
• Core power supply (3.3 V)
• 3.3 V/1.8 V VDDIO operation supported
• Smart power control with deep power down feature
• Available in 32-pin (5mm x 5mm) QFN package, Pb-free
• Available in Industrial Temp and Lead Free