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DP83266

National Semiconductor
Part Number DP83266
Manufacturer National Semiconductor
Description MACSITM Device
Published Nov 22, 2006
Detailed Description www.DataSheet4U.com DP83266 MACSI Device (FDDI Media Access Controller and System Interface) PRELIMINARY October 1994 ...
Datasheet PDF File DP83266 PDF File

DP83266
DP83266

Overview
www.
DataSheet4U.
com DP83266 MACSI Device (FDDI Media Access Controller and System Interface) PRELIMINARY October 1994 DP83266 MACSI TM Device (FDDI Media Access Controller and System Interface) General Description The DP83266 Media Access Controller and System Interface (MACSI) implements the ANSI X3T9 5 Standard Media Access Control (MAC) protocol for operation in an FDDI token ring and provides a comprehensive System Interface The MACSI device transmits receives repeats and strips tokens and frames It produces and consumes optimized data structures for efficient data transfer Full duplex architecture with through parity allows diagnostic transmission and self testing for error isolation and point-to-point connections The MACSI device includes the functionality of both the DP83261 BMACTM device and the DP83265 BSI-2TM device with additional enhancements for higher performance and reliability Y Y Y Y Y Y Y Y Y Y Y Features Y Y Y Y Y Y Y Y Y Y Y Y Over 9 kBytes of on-chip FIFO 5 DMA channels (2 Output and 3 Input) 12 5 MHz to 25 MHz operation Full duplex operation with through parity Supports JTAG boundary scan Real-time Void stripping indicator for bridges On-chip address bit swapping capability 32-bit wide Address Data path with byte parity Programmable transfer burst sizes of 4 or 8 32-bit words Receive frame filtering services Frame-per-Page mode controllable on each DMA channel Demultiplexed Addresses supported on ABus New multicast address matching feature ANSI X3T9 5 MAC standard defined ring service options Supports all FDDI Ring Scheduling Classes (Synchronous Asynchronous etc ) Supports Individual Group Short Long and External Addressing Generates Beacon Claim and Void frames Extensive ring and station statistics gathering Extensions for MAC level bridging Enhanced SBus compatibility Interfaces to DRAMs or directly to system bus Supports frame Header Info splitting Programmable Big or Little Endian alignment Block Diagram TL F 11705 – 1 FIGUR...


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