Data processing system using a high speed data cha

专利名称：Data processing system using a high speed

data channel for providing direct memoryaccess for block data transfers

发明人：Kenneth D. Holberger,Joseph E. Samson申请号：US06/144884申请日：19800429公开号：US04403282A公开日：19830906

摘要：A data processing system having a central processor unit (CPU) and a memoryand further including a high speed, or \"burst multiplexer\access to the memory by an input/output (I/O) device without the need to use registersand control signals from the central processor unit. The high speed channel utilizes itsown memory port separate from that of the CPU and includes internal paths fortransferring addresses and data between an I/O device and the memory. The channelfurther includes a memory allocation unit (MAP) which can be loaded by transfer ofmemory allocation data via substantially the same common path as the I/O data transfer.Appropriate control logic is also included to control the data and address transfers andthe MAP load and dump operations so that blocks of data words can be transferredsequentially and directly to or from the memory.

申请人：DATA GENERAL CORPORATION

代理人：Robert F. O'Connell

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