问一下88E1512芯片的Auto-Negotiation功能

Acolasia_J 2021-06-22 09:49:39

使用zynq的FPGA芯片，通过RGMII与88E1512进行通讯，现在发现在接入千兆交换机的时候，千兆口一点反应也没有，link灯也不亮，数据完全没有，哪位大神使用过88E1512这款芯片，求指教？？？？？

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xmj1140278298 2021-07-03

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检查下硬件的模式配置电阻是不是期望的工作方式。

疯狂的CYYC 2021-07-02

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那就看一下配置的速率、工作模式、带宽等是否匹配

88E1512配置SGMII to 1000BASE-T模式.docx

对88E1111的模式配置进行讲解。

Marvell的8口以太网交换芯片88E6085的datasheet文档。 The Marvell® 88E6085 device is a single chip integrated 10-port Fast Ethernet switch. This device supports ‘Best-in-Class’ Quality of Service (QoS) and the highest ‘real-world’ performance. It is uniquely designed for SOHO router and gateway applications. This device contains eight 10BASE-T/100BASE-TX transceivers (PHYs) and two MII ports. The 88E6085 device is designed to work in all environments. True Plug-and-Play is supported with Auto-Crossover, Auto-Negotiation, and Auto-Polarity in the PHYs, along with bridge loop prevention (using Port States). The 88E6085 contains ten independent 802.3 media access controllers (MACs), a high-speed, non-blocking four traffic class QoS switch fabric that uses the unique patented Marvell Dynamic Queue Limit architecture. The QoS architecture switches packets into one of four traffic class queues based upon Port, IEEE 802.1p, IPv4 Type of Service (TOS) or Differentiated Services (Diff-Serv), IPv6 Traffic Class, 802.1Q VLAN ID, DA MAC address or SA MAC address. The devices also contain a high-performance address lookup engine with support for up to 2K active nodes, and a 1 Mbit frame buffer memory. Back-pressure and Pause frame-based flow control schemes are included to support zero packet loss under temporary traffic congestion. The MAC units in the devices comply fully with the applicable sections of IEEE 802.3. The two MII interfaces support a direct connection to Management or Router CPUs with integrated MACs. Both interfaces support MII-PHY mode or MII-MAC mode. These interfaces, along with BPDU handling for IEEE 802.1D Spanning Tree Protocol, 802.1w Rapid Spanning Tree, 802.1s Multiple VLAN Spanning Tree, programmable per-port VLAN configurations, 802.1Q and Port States, support fully managed switches and truly isolated WAN vs. LAN firewall applications. The device supports 64 802.1Q VLAN IDs which can be enabled on a per port basis. Three levels of 802.1Q security is supported with error frame trapping and logging. The 88E6085 supports multiple address databases which allows packet routing without modification of the MAC address. This allows the same MAC address to exist multiple times in the MAC Address database with multiple port mappings, to completely isolate the WAN from the LAN database. The integrated PHYs in the 88E6085 are designed with the Marvell® cutting-edge mixed-signal processing technology for digital implementation of adaptive equalization and clock data recovery. Special power management techniques are used to facilitate low power dissipation and high port count integration. Both the PHY and MAC units in the 88E6085 comply fully with the applicable sections of IEEE 802.3, IEEE 802.3u, and IEEE 802.3x standards

88e1111完整数据手册。

此文档为559阅读88E6060数据手册时所做的笔记，您能通过它对88E6060有个初步的认识。如果要应用它，请阅读数据手册。能力有限，见谅！

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