AM79C982 Datasheet PDF

Advanced Micro Devices AM79C982

the Am79C980 (IMR) and Am79C981 (IMR+) devices s Repeater functions comply with IEEE 802.3 Repeater Unit specifications s Four and eight 10BASE-T port options available s Low-cost, flexible solutions suitable for non-managed repeater designs s Integral 10BASE-T transceivers utilize the required predistortion transmission technique s Attachment unit interface (AUI) port allows connectivity with 10BASE-5 (Ethernet) and 10BASE-2 (Cheapernet) networks, as well as 10BASE-F and/or Fiber Optic Inter-Repeater Link (FOIRL) segments s Minimum mode facilitates LED implementation and provides four LED... The receive Link Test function can be optionally disabled through the management port to facilitate interoperability with devices that do not implement the Link Test function s Programmable option of Automatic Polarity Detection and Correction permits automatic recovery due to wiring errors s Full amplitude and timing regeneration for retransmitted waveforms s Preamble loss effects eliminated by deep FIFO s CMOS device features high integration and low power with a single +5 V supply GENERAL DESCRIPTION The basic Integrated Multiport Repeater (bIMR™) chip is a VLSI circuit that provides a... The device integrates the Repeater functions specified by Section 9 of the IEEE 802.3 standard and twisted-pair Transceiver functions complying to the 10BASE-T standard.