KSZ9477S 7-Port Gigabit Ethernet Switch with Ring Redundancy, SGMII and RGMII/MII/RMII Interfaces Five Integrated PHY Ports Highlights - 1000BASE-T/100BASE-TX/10BASE-Te IEEE 802.3 One port with 10/100/1000 Ethernet MAC - Fast Link-up option significantly reduces link-up time and SGMII interface - Auto-negotiation and Auto-MDI/MDI-X support One port with 10/100/1000 Ethernet MAC - On-chip termination resistors and internal biasing for and configurable RGMII/MII/RMII interface differential pairs to reduce power EtherSynch with full support for IEEE 1588v2 - LinkMD cable diagnostic capabilities Precision Time Protocol (PTP) Advanced Switch Capabilities IEEE 802.1AS/Qav Audio Video Bridging (AVB) - IEEE 802.1Q VLAN support for 128 active VLAN groups and the full range of 4096 VLAN IDs IEEE 802.1X access control support - IEEE 802.1p/Q tag insertion/removal on per port basis Five ports with integrated 10/100/1000BASE-T PHY - VLAN ID on per port or VLAN basis transceivers w/ optional Quiet-WIRE EMC filtering - IEEE 802.3x full-duplex flow control and half-duplex Non-blocking wire-speed Ethernet switching fabric back pressure collision control Full-featured forwarding and filtering control, includ- - IEEE 802.1X access control (Port and MAC address) ing Access Control List (ACL) filtering - IGMP v1/v2/v3 snooping for multicast packet filtering Full VLAN and QoS support - IPv6 multicast listener discovery (MLD) snooping EtherGreen power management features, - IPv4/IPv6 QoS support, QoS/CoS packet prioritization including low power standby - 802.1p QoS packet classification with 4 priority queues 2 Flexible management interface options: SPI, I C, - Programmable rate limiting at ingress/egress ports MIIM, and in-band management via any port Ring Redundancy Industrial temperature range support - DLR (EtherNet/IP) support 128-pin TQFP-EP (14 x 14mm) RoHS compliant pkg - HSR (IEC 62439-3) support IEEE 1588v2 PTP and Clock Synchronization Target Applications - Transparent Clock (TC) with auto correction update - Master and slave Ordinary Clock (OC) support Industrial Ethernet (Profinet, MODBUS, Ethernet/IP) - End-to-end (E2E) or peer-to-peer (P2P) Real-time Ethernet networks - PTP multicast and unicast message support IEC 61850 networks w/ power substation automation - PTP message transport over IPv4/v6 and IEEE 802.3 Industrial control/automation switches - IEEE 1588v2 PTP packet filtering Networked measurement and control systems - Synchronous Ethernet support via recovered clock Test and measurement equipment Audio Video Bridging (AVB) - Compliant with IEEE 802.1BA/AS/Qat/Qav standards Features - Priority queuing, Low latency cut-through mode - gPTP time synchronization, credit-based traffic shaper Switch Management Capabilities - Time aware traffic scheduler per port - 10/100/1000Mbps Ethernet switch basic functions: Comprehensive Configuration Registers Access frame buffer management, address look-up table, 2 queue management, MIB counters - High-speed 4-wire SPI (up to 50MHz), I C interfaces provide access to all internal registers - Non-blocking store-and-forward switch fabric assures fast packet delivery by utilizing 4096 entry forwarding - MII Management (MIIM, MDC/MDIO 2-wire) Interface table with 256kByte frame buffer provides access to all PHY registers - Jumbo packet support up to 9000 bytes - In-band management via any of the data ports - Port mirroring/monitoring/sniffing: - I/O pin strapping facility to set register bits at reset ingress and/or egress traffic to any port Power Management - Rapid spanning tree protocol (RSTP) support for topol- - Energy detect power-down mode on cable disconnect ogy management and ring/linear recovery - Dynamic clock tree control - Multiple spanning tree protocol (MSTP) support - Unused ports can be individually powered down One External MAC Port with SGMII - Full-chip software power-down One External MAC Port with RGMII/MII/RMII - Wake-on-LAN (WoL) standby power mode - RGMII v2.0, RMII v1.2 with 50MHz reference clock input/output option, MII in PHY/MAC mode 2017 Microchip Technology Inc. DS00002392A-page 1KSZ9477S TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors microchip.com. We welcome your feedback. Most Current Documentation To obtain the most up-to-date version of this documentation, please register at our Worldwide Web site at: