BCM5461S详细设计开发资料。 BCM5461S SUPPORTED SWITCH/MAC INTERFACES: • GMII (Gigabit Media Independent Interface): 1000-Mbps data rate (designed for 2.5V or 3.3V I/O operation) • MII (Media Independent Interface): 100/10-Mbps data rates (designed for 2.5V or 3.3V I/O operation) • RGMII (Reduced pin count version of GMII): (1000/100/10-Mbps operation with 2.5V I/Os) • TBI (10-Bit Interface) 1000-Mbps operation • RTBI (Reduced pin count version of Ten Bit Interface): 1000-Mbps operation with 2.5V I/Os) • SGMII (Serial GMII): 1000/100/10 The BCM5461S is an unshielded twisted pair (UTP) Gigabit Ethernet transceiver that features an on-chip 1.25-Gbaud IEEEcompliant SerDes interface. This device employs advanced digital signal processing techniques to deliver the highest transmission and reception performance in the industry while allowing fabrication in low-power, low-cost 1.2V CMOS technology. The BCM5461S copper interface provides 10/100/1000BASE-T transmission and reception with autonegotiation. The 1.25-Gbaud serial interface can be configured for interfacing to a fiber optical module, a SerDes-compatible device, or an SGMII MAC interface. The serial interface is robust enough to use in backplane FR4 applications. This document summarizes the test conditions and results of backplane signaling evaluation, as well as the receive jitter tolerance evaluation for the BCM5461S SerDes interface.

这几个数据手册,在官网上下载不了或下载不了全的, 88e1111 主要用在SFP电口千兆以太网, 88e1113 bcm5461 在SGMII 接口 转100Base 光纤常用到.

博通千兆以太网PHY芯片资料，做硬件的懂的