The AT LANTIC AT Local Area Network Twisted-pair Interface Controller is a CMOS VLSI device designed for easy implementation of CSMA CD local area networks Unique to the AT LANTIC is the integration of the entire bus interface for PC-AT ISA (Industry Standard Architecture) bus based systems Hardware and software selectable options allow the AT LANTIC's bus interface to be configured software compatible to either an NE2000 or Ethercard PLUS16TM All bus drivers and control logic are integrated to reduce board cost and area