DP83952

www.DataSheet4U.com DP83952 Repeater Interface Controller with Security Features (RIC II) PRELIMINARY September 1995 DP83952 Repeater Interface Controller with Security Features (RIC TM II) General Description The DP83952 RIC II Repeater Interface Controller is an ‘‘Enhanced’’ version of the DP83950 RIC RIC II is fully backward pin and functional compatible with the RIC The DP83952 RIC II has the same basic architecture as the RIC with additional feature enhancements RIC II provides additional network security options additional statistics for repeater activities and a faster processor interface When RIC II is used in a ‘‘non-secure’’ mode it functions in the same manner as the DP83950 RIC When RIC II is used in a ‘‘secure’’ mode it restricts unauthorized nodes from intruding and or eavesdropping into the network The RIC II utilizes internal CAMs to store compare addresses of valid nodes when network security is desired RIC II implements the IEEE 802 3 multiport repeater unit specifications It is fully compliant with the 802 3 repeater specification for the repeater segment partition and jabber lockup protection state machines (Continued) Y Y Y Y Y Y Y Y Y Separate Partition state machines for each port Compatible with 802 3k Hub Management requirements Provides port status information for LED displays including receive collision partition link status and jabber Power-up configuration options Repeater and Partition Specifications Transceiver Interface Status Display P...