KSZ9893RNX 3-Port Gigabit Ethernet Switch with RGMII/MII/RMII Interface Two Integrated PHY Ports Highlights - 1000BASE-T/100BASE-TX/10BASE-T IEEE 802.3 Non-blocking wire-speed Ethernet switching fabric - Fast Link-up option significantly reduces link-up time Full-featured forwarding and filtering control, includ- - Auto-negotiation and Auto-MDI/MDI-X support ing Access Control List (ACL) filtering - Energy-Efficient Ethernet (EEE) support with low- Full VLAN and QoS support power idle mode and clock stoppage - On-chip termination resistors and internal biasing for Two ports with integrated 10/100/1000BASE-T PHYs differential pairs to reduce power One port with 10/100/1000 Ethernet MAC and - LinkMD cable diagnostic capabilities for determining configurable RGMII/MII/RMII interface cable opens, shorts, and length IEEE 802.1X port-based authentication support One Configurable External MAC Port EtherGreen power management features, - Reduced Gigabit Media Independent Interface including low power standby and IEEE 802.3az (RGMII) v2.0 2 Flexible management interface options: SPI, I C, - Reduced Media Independent Interface (RMII) v1.2 MIIM, and in-band management via any port with 50MHz reference clock input/output option Commercial/Industrial temperature range support - Media Independent Interface (MII) in PHY/MAC mode 64-pin VQFN (8 x 8mm) lead-free package Advanced Switch Capabilities - IEEE 802.1Q VLAN support for 128 active VLAN groups and the full range of 4096 VLAN IDs Target Applications - IEEE 802.1p/Q tag insertion/removal on per port basis Stand-alone 10/100/1000Mbps Ethernet switches - VLAN ID tag/untag options on per port or VLAN basis VoIP infrastructure switches - IEEE 802.3x full-duplex flow control and half-duplex back pressure collision control Broadband gateways/firewalls - IEEE 802.1X (Port-Based Network Access Control) Wi-Fi access points - IGMP v1/v2/v3 snooping for multicast packet filtering Integrated DSL/cable modems - IPv6 multicast listener discovery (MLD) snooping Security/surveillance systems - IPv4/IPv6 QoS support, QoS/CoS packet prioritization Industrial control/automation switches - 802.1p QoS packet classification with 4 priority queues Networked measurement and control systems - Programmable rate limiting at ingress/egress ports - Broadcast storm protection Features - Four priority queues with dynamic packet mapping for IEEE 802.1p, IPv4 DIFFSERV, IPv6 Traffic Class Switch Management Capabilities - MAC filtering function to filter or forward unknown uni- - 10/100/1000Mbps Ethernet switch basic functions: cast, multicast and VLAN packets frame buffer management, address look-up table, - Self-address filtering for implementing ring topologies queue management, MIB counters Comprehensive Configuration Registers Access - Non-blocking store-and-forward switch fabric assures 2 - High-speed 4-wire SPI (up to 50MHz), I C interfaces fast packet delivery by utilizing 4096 entry forwarding provide access to all internal registers table with 128kByte frame buffer - MII Management (MIIM, MDC/MDIO 2-wire) Interface - Jumbo packet support up to 9000 bytes provides access to all PHY registers - Port mirroring/monitoring/sniffing: - In-band management via any of the three ports ingress and/or egress traffic to any port - I/O pin strapping facility to set certain register bits from - MIB counters for fully-compliant statistics gathering I/O pins at reset time 34 counters per port - On-the-fly configurable control registers - Tail tagging mode (one byte added before FCS) sup- port at host port to inform the processor which ingress Power Management port receives the packet and its priority - IEEE 802.3az Energy Efficient Ethernet (EEE) - Loopback modes for remote failure diagnostics - Energy detect power-down mode on cable disconnect - Rapid spanning tree protocol (RSTP) support for topol- - Dynamic clock tree control ogy management and ring/linear recovery - Unused ports can be individually powered down - Multiple spanning tree protocol (MSTP) support - Full-chip software power-down - Wake-on-LAN (WoL) standby power mode 2016 Microchip Technology Inc. DS00002318A-page 1KSZ9893RNX 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: