Channel interface circuit providing virtual channel number translation and direct memory access

摘要: The subject channel interface circuit functions to provide a high speed between processor and data link, which link carries messages having virtual addresses. message handler is programmable serves translate the header portion of from address into hardware memory address, used activate specific location in memory. then directly inputted this (i.e., DMA) appropriate file pointers are reset. When complete received stored memory, generates interrupt. Thus, performs all receiving tasks, including storage linking, without requiring involvement associated processor. All known prior art circuits require extensive operation thereby significantly reduce effective transfer capabilities link.