The KSZ8001L is an Integrated 9-port 10/100 Switch with PHY and frame buffer. This device runs in two modes. The first mode is an eight port integrated switch and the second is as a nine port switch with the ninth port available through an MII (Media Independent Interface). Useful configurations include a stand-alone eight port switch as well as an eight port switch with a routing element connected to the extra MII port. The additional port is also useful for a public network interfacing. The KS8999 is designed to reside in an unmanaged design not requiring processor intervention. This is achieved through I/O strapping or EEPROM programming at system reset time. On the media side, it supports 10BaseT, 100BaseTX and 100BaseFX as specified by the IEEE 802.3 committee. Physical signal transmission and reception are enhanced through use of analog circuitry that makes the design more efficient and allows for lower power consumption and smaller chip die size.
128kB of SRAM on chip for frame buffering
2.0Gbps High performance memory bandwidth
Wire speed reception and transmission
Integrated address look-up engine, supports 1K absolute MAC addresses
Automatic address learning, address aging and address migration
Supports 802.1p priority and port based priority
Supports port based VLAN
Supports 1536byte frame for VLAN tag
Supports DiffServ priority, 802.1p based priority or port based priority broadcast storm protection
Proven transceiver technology for UTP and fibre operation
Supports for UTP or fibre on all 8-ports
Indicators for link, activity, full/half-duplex and speed
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