The KSZ9563 is a highly-integrated, IEEE 802.3 compliant networking device that incorporates a layer-2+ managed Gigabit Ethernet switch, two 10BASE-T/100BASE-TX/1000BASE-T physical layer transceivers (PHYs) and associated MAC units, and one MAC port with a configurable RGMII/MII/RMII interface for direct connection to a host processor/ controller, another Ethernet switch, or an Ethernet PHY transceiver.  KSZ9563 also implements IEEE 1588v2 Precision Timing Protocol.

Full register access is available by SPI or I²C interfaces, and by optional in-band management via any of the data ports. PHY register access is provided by a MIIM interface.

Security features include support for IEEE 802.1X port-based authentication and Access Control List (ACL) filtering.

An assortment of power-management features including Energy-Efficient Ethernet (EEE) have been designed in to satisfy energy efficient environments.

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• EtherSync®
• IEEE 1588 v2 PTP
• One-step Operation
• Transparent Clock (TC) with auto correction update
• Master and slave Ordinary Clock (OC) support
• End-to-end (E2E) or peer-to-peer (P2P)
• PTP multicast and unicast message support
• PTP message transport over IPv4/v6 and IEEE 802.3
• IEEE 1588v2 PTP packet filtering
• Advanced Switch Capabilities
• IEEE 802.1Q VLAN support for 128 active VLAN groups and the full range of 4096 VLAN IDs
• IEEE 802.1p/Q tag insertion/removal on per port basis
• VLAN ID on per port or VLAN basis
• IEEE 802.3x full-duplex flow control and half-duplex back pressure collision control
• IEEE 802.1X (Port-Based Network Access Control)
• IGMP v1/v2/v3 snooping for multicast packet filtering
• IPv6 multicast listener discovery (MLD) snooping
• IPv4/IPv6 QoS support, QoS/CoS packet prioritization
• 802.1p QoS packet classification with 4 priority queues
• Programmable rate limiting at ingress/egress ports
• Switch Management Capabilities
• 10/100Mbps Ethernet switch basic functions: frame buffer management, address look-up table, queue management, MIB counters
• Non-blocking store-and-forward switch fabric assures fast packet delivery by utilizing 4096 entry forwarding table with 128kByte frame buffer
• Jumbo packet support up to 9000 bytes
• Port mirroring/monitoring/sniffing: ingress and/or egress traffic to any port
• Rapid spanning tree protocol (RSTP) support for topology management and ring/linear recovery
• Multiple spanning tree protocol (MSTP) support
• Two Robust Integrated PHY Ports
• 1000BASE-T/100BASE-TX/10BASE-T IEEE 802.3
• LinkMD®+ receive signal quality indicator
• Fast Link-up option significantly reduces link-up time
• Auto-negotiation and Auto-MDI/MDI-X support
• Energy-Efficient Ethernet (EEE) support with low-power idle mode and clock stoppage
• On-chip termination resistors and internal biasing for differential pairs to reduce power
• LinkMD® cable diagnostic capabilities for determining cable opens, shorts, and length
• Configurable External MAC Port
• Reduced Gigabit Media Independent Interface (RGMII) v2.0
• Reduced Media Independent Interface (RMII) v1.2 with 50MHz reference clock input/output option
• Media Independent Interface (MII) in PHY/MAC mode