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AM79C940 - Advanced Micro Devices

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AM79C940 Media Access Controller for Ethernet (MACE)

The Media Access Controller for Ethernet (MACE) chip is a CMOS VLSI device designed to provide flexibility in customized LAN design. The MACE device is specifically designed to address applications where multiple I/O peripherals are present, and a centralized or system specific DMA is required. The high speed, 16-bit synchronous system interface is optimized.

Features


  – Automatic retransmission with no FIFO reload
  – Automatic receive stripping and transmit padding (individually programmable)
  – Automatic runt packet rejection
  – Automatic deletion of collision frames
  – Automatic retransmission with no FIFO reload s Direct slave access to all on board configuration/status registers and transmit/ receive FlFOs Direct FIFO read/write access for simple interface to DMA controllers or l/O processors s s s s s Advanced Micro Devices s s s s s s s Arbitrary byte alignment and little/big endian memory interface supported Internal/external loopback capabilities.

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