BCM84881数据手册集成电路（IC）的控制器规格书PDF

描述 Description

The Broadcom® BCM84881 is a single-port 10GBASE-T/5GBASE-T/2.5GBASE-T/1000BASE-T/100BASE-TX Ethernet CMOS transceiver. The device performs all physical-layer functions for 10GBASE_T, 5GBASE-T, 2.5GBASE-T, 1000BASE-T, and 100BASE-TX Ethernet on Category Cat5e, 6, or 6A twisted-pair cable. BCM84881 is a highly integrated solution that supports USXGMII, XFI, 5000BASE-X, 2500BASE-X, and 1000BASE-X (SGMII) MAC interface The BCM84881 features the Energy Efficient Ethernet (EEE) protocol. EEE enables the BCM84881 to auto-negotiate and operate with EEE-compliant link partners to reduce overall system power during low utilization of the link. Broadcom’s AutogrEEEn® mode permits legacy systems to enjoy the power saving benefits of EEE. The BCM84881 features Enhanced Cable Diagnostics, which detects common cable problems such as shorts, opens, and cable length.

特性 Features

• Single-chip integrated single-port Ethernet transceiver-MAC to magnetics:
• 10GBASE-T IEEE 802.3an
• 5GBASE-T 802.3bz
• 2.5GBASE-T 802.3bz
• 1000BASE-T IEEE 802.3ab
• 100BASE-TX IEEE 802.3u
• 5G NBASE-T spec.
• 2.5G NBASE-T spec.

• XFI/10GBASE-KR, USXGMII, 5000BASE-X, 2500BASE-X, and 1000BASE-X (SGMII) MAC Interfaces
• 5G rate over USXGMII/XFI/5000BASE-X MAC interfaces
• 2.5G rate over USXGMII/XFI/2500BASE-X MAC interfaces
• IEEE 1588-2008 PTP version 2 (Time Stamp)
• EEE on 10GBASE-T, 5GBASE-T, 2.5GBASE-T, 1000BASE-T, and 100BASE-TX
• Low electromagnetic interference (EMI) emissions
• Enhanced cable diagnostics
• Support for jumbo packets up to 18 KB
• Low-power, 1.0V CMOS core
• Device package: 11 mm × 11 mm BGA

应用 Application

• Ethernet switches and uplinks
• Ethernet server
• Broadband CPE