[Realtek]

General Description

The RTL8201BL is a single-port Phyceiver with an MII (Media Independent Interface)/SNI(Serial Network Interface). It implements all 10/100M Ethernet Physical-layer functions including the Physical Coding Sublayer (PCS), Physical Medium Attachment (PMA), Twisted Pair Physical Medium Dependent Sublayer (TP-PMD), 10Base-Tx Encoder/Decoder and Twisted Pair Media Access Unit (TPMAU). A PECL interface is supported to connect with an external 100Base-FX fiber optical transceiver. The chip is fabricated with an advanced CMOS process to meet low voltage and low power requirements.

The RTL8201BL can be used as a Network Interface Adapter, MAU, CNR, ACR, Ethernet Hub, Ethernet Switch. Additionally, it can be used in any embedded system with an Ethernet MAC that needs a twisted pair physical connection or fiber PECL interface to external 100Base-FX optical transceiver module.

Features

The Realtek RTL8201BL is a Fast Ethernet Phyceiver with selectable MII or SNI interface to the MAC chip. It provides the following features:

● Supports MII/7-wire SNI (Serial Network Interface) interface

● Supports 10/100Mbps operation

● Supports half/full duplex operation

● Support of twisted pair or Fiber mode output

● IEEE 802.3/802.3u compliant

● Supports IEEE 802.3u clause 28 auto negotiation

● Supports power down mode

● Supports operation under Link Down Power Saving mode

● Supports Base Line Winder (BLW) compensation

● Supports repeater mode

● Speed/duplex/auto negotiation adjustable

● 3.3V operation with 5V IO signal tolerance

● Low operation power consumption and only need single supply 3.3V

● Adaptive Equalization

● 25MHz crystal/oscillator as clock source

● Multiple network status LED support

● Flow control ability support to co-work with MAC (by MDC/MDIO)

● 48 pin LQFP package