KSZ8794CNXIC

The KSZ8794CNX is a highly integrated, Layer 2 managed, four-port switch with numerous features designed to reduce system cost. It is intended for costsensitive applications requiring three 10/100Mbps copper ports and one 10/100/1000Mbps Gigabit uplink port. The KSZ8794CNX incorporates a small package outline, lowest power consumption with internal biasing, and onchip termination. Its extensive features set includes enhanced power management, programmable rate limiting and priority ratio, tagged and port-based VLAN, port-based security and ACL rule-based packet filtering technology, QoS priority with four queues, management interfaces, enhanced MIB counters, high-performance memory bandwidth, and a shared memory-based switch fabric with non-blocking support. The KSZ8794CNX provides support for multiple CPU data interfaces to effectively address both current and emerging fast Ethernet and Gigabit Ethernet applications where the GMAC interface can be configured to any of RGMII, MII and RMII modes. The KSZ8794CNX is built on Micrel’s latest industryleading Ethernet analog and digital technology, with features designed to offload host processing and streamline your overall design:
Three integrated 10/100Base-T/TX MAC/PHYs.
One integrated 10/100/1000Base-T/TX GMAC with selectable RGMII, MII or RMII interfaces.
Small 64-pin QFN package.

The KSZ8794CNX includes all the functions of a 10/100Base-T/TX switch system which combines a switch engine, frame buffer management, address lookup table, queue management, MIB counters, media access controllers (MAC) and PHY transceivers Non-blocking store-and-forward switch fabric assures fast packet delivery by utilizing 1024 entries forwarding table Port mirroring/monitoring/sniffing: ingress and/or egress traffic to any port MIB counters for fully compliant statistics gathering 36 counters per port Support hardware for port-based flush and freeze command in MIB counter Multiple loopback of remote, PHY and MAC modes support for the diagnostics Four Integrated IEEE 802.3 / 802.3u compliant Ethernet transceivers supporting 10Base-T and 100Base-TX IEEE 802.1az EEE supported Four internal media access control (MAC1 to MAC3) units and one internal gigabit media access control (GMAC4) unit RGMII, MII or RMII interfaces support for the port 4 GMAC4 with uplink 2KByte Jumbo packet support