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DP83901AV
DP83901A SNIC Serial Network Interface Controller General Description Features The DP83901A Serial Network Interface Controller (SNIC) is a microCMOS VLSI device designed for easy implementation of CSMA CD local area networks These include Ethernet (10BASE5) Thin Ethernet (10BASE2) and Twisted-pair Ethernet (10BASE-T) The overall SNIC solution provides the Media Access Control (MAC) and Encode-Decode (ENDEC) functions in accordance with the IEEE 802 3 standard The integrated ENDEC module allows Manchester encoding and decoding via a differential transceiver and phase lock loop at 10 Mbit sec Also included is a collision detect translator and diagnostic loopback capability (Continued) Y Y Y Y Y Y Y Y Y et Y Y Y Y O bs ol 1 0 System Diagram e Y Compatible with IEEE 802 3 10BASE5 10BASE2 10BASE-T Dual 16-byte DMA channels 16-byte internal FIFO Network statistics storage Supports physical multicast and broadcast address filtering 10 Mbit sec Manchester encoding and decoding plus clock recovery No external precision components required Efficient buffer management implementation Transmitter can be selected for half or full step mode Integrated squelch on receive and collision pairs 3 levels of loopback supported Utilizes independent system and network clocks Lock Time 5 bits typical Decodes Manchester data with up to g 18 ns jitter TL F 10469 – 1 TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 10469 RRD-B30M115 Printed in U S A DP83901A SNIC Serial Network Interface Controller November 1995
NS
National Semiconductor Corporation 日本ではナショセミと略称されていたが2011年9月23日、米TI社に買収され、同社のシリコンバレー部門となった。
TI
Texas Instruments Incorporated
U.S.A
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