RTL8221B(I)-VB-CG数据手册Realtek中文资料规格书

描述 Description

The Realtek RTL8221B(I)-VB-CG (hereafter referred to as the RTL8221B(I)-VB, except where differences exist) is a highly integrated Ethernet PHY transceiver that is compatible with 10BASE-Te, 100BASE-TX, 1000BASE-T, and 2.5GBASE-T, and is fully compatible with both the IEEE 802.3 standard and the NBASE-T™ Alliance PHY. It provides all the necessary physical layer functions to transmit and receive Ethernet packets over CAT.5e UTP cable.
The RTL8221B(I)-VB uses state-of-the-art DSP technology and Analog Front End (AFE) to enable high-speed data transmission and reception over UTP cable. Functions such as Crossover Detection & Auto-Correction, polarity correction, MDI swap, adaptive equalization, cross-talk cancellation, echo cancellation, timing recovery, RFI protection, thermal management, loopback diagnostic capability, and error correction are implemented in the RTL8221B(I)-VB to provide robust transmission and reception capabilities.
Data transfer between MAC and PHY is via the SERDES (Serializer-Deserializer) interface, which supports SGMII, HiSGMII, and 2500Base-X. The RTL8221B(I)-VB operates at various digital I/O voltages, including 3.3V and 1.8V.

特性 Features

• Compatible with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
• Supports IEEE 802.3az (Energy Efficient Ethernet)
• Supports IEEE 802.3bz (2.5GBASE-T)
• Supports Full Duplex flow control (IEEE 802.3x)
• Supports IEEE 802.3 optional ability (Energy Efficient Ethernet and Fast Retrain)
• Integrated 10M BASE-Te and 100M/1000M/2.5GBASE-T IEEE 802.3 compatible transceiver
• Supports 2.5G Lite (1G data rate) mode
• Auto-Negotiation with Extended Next Page capability (XNP)
• Compatible with NBASE-TTM Alliance PHY Specification
• Supports pair swap/polarity/skew correction
• Crossover Detection & Auto-Correction
• Configurable MDI port ordering (MDI swap) for easy PCB layout
• Supports hardware CRC (Cyclic Redundancy Check) function
• Supports power down/link down power saving mode
• Supports clause 22 and Clause 45 MDC/MDIO management interface
• Supports rate adaptor for SerDes
• Selectable SERDES interface to MAC control (SGMII/HiSGMII/2500 BASE-X)
• Built-in Wake-on-LAN (WOL) over UTP
• Supports Interrupt function over UTP
• Supports Parallel Detection
• Supports PHYRSTB core power Turn-Off
• Baseline Wander Correction
• Selectable 3.3/1.8V signaling for MMD access
• Supports 25MHz crystal or external OSC
• Provides 25MHz clock source for MAC
• Provides 3 network customized LEDs with controllable LED Blinking Frequency and Duty Cycle
• Self-Loopback diagnostic capability
• Thermal management on PHY
• 48-pin QFN Green Package
• 22nm process with ultra-low power consumption
• Complete hardware support for Synchronous Ethernet and Precision Time Protocol (PTP) including IEEE 1588v1, v2, and 802.1AS
• Supports SPI Flash (up to 24MB flash size)
• Industrial grade manufacturing process (RTL8221BI-VB/ RTL8221BI-VM)

应用 Application

• DTV (Digital TV)

• MAU (Media Access Unit)

• CNR (Communication and Network Riser)

• Game Console

• Printer and Office Machine

• DVD Player and Recorder

• Ethernet Hub

• Ethernet Switch

• Base Stations and Controllers

• Routers, DSLAMs, PON Equipment

• Test and Measurement Systems

• Industrial and Factory Automation Equipment

• Multimedia synchronization and Real Time Networking