Functional Description
The RTL8201CP PHYceiver is a physical layer device that integrates 10Base-T and
100Base-TX/100Base-FX functions, and some extra power management features into a 48-pin single chip
that is used in 10/100 Fast Ethernet applications. This device supports the following functions:
• MII interface with MDC/MDIO SMI management interface to communicate with MAC
• IEEE 802.3u clause 28 Auto-Negotiation ability
• Flow control ability support to cooperate with MAC
• Speed, duplex, auto-negotiation ability configurable by hard wire or MDC/MDIO
• Flexible LED configuration
• 7-wire SNI (Serial Network Interface) support (only in 10Mbps mode)
• Power Down mode support
• 4B/5B transform
• Scrambling/De-scrambling
• NRZ to NRZI, NRZI to MLT-3
• Manchester Encode and Decode for 10Base-T operation
• Clock and Data recovery
• Adaptive Equalization

• Far End Fault Indication (FEFI) in fiber mode

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