KS8995

KS8995 – 5 Port 10/100 Switch with PHY Introduction The KS8995 contains five 10/100 physical layer transceivers, five MAC (Media Access Control) units with an integrated layer 2 switch. The device runs in two modes. The first mode is a five port integrated switch and the second is as a five port switch with the fifth port decoupled from the physical port. In this mode access to the fifth MAC is provided using a MII (Media Independent Interface). Useful configurations include a stand alone five port switch as well as a four port switch with a routing element connected to the extra MII port. The additional port is also useful for public network interfacing. The KS8995 is designed to reside in an unmanaged design not requiring processor intervention. This is achieved through I/O strapping at system reset time On the media side, the KS8995 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. Unmanaged operation via strapping at system reset time Hardware based 10/100, full/half, flow control and auto negotiation Individual port forced modes (full duplex, 100BaseTX) when auto negotiation is disabled Wire speed reception and transmission Integrated address Look-Up Engine, supports 1K absolute MAC addresses Automatic address learning, address ...