发明名称 Split write data processing mechanism for memory controllers
摘要 <p>A memory controller provides fast processing of sequential split memory access instructions which include a split write instruction. In a split write instruction, a write address and write request are provided to the memory controller in an initial transaction while write data can be provided to the memory controller in a later transaction. The memory controller includes a sideline buffer, for buffering incomplete write instructions, and memory control logic which ensures proper execution of the sequential memory access instructions. Upon receiving an incomplete write instruction, the memory control logic stores the corresponding write request and write address in the sideline buffer until corresponding write data becomes available. The memory control logic determines if there is overlap between memory space to be occupied by an initial write data block and memory space to be occupied by a subsequent read data block or second write data block, of a read or write instruction respectively. By using a sideline buffer to temporarily store incomplete write instructions, processing of sequential memory access instructions can continue subject to observance of memory access conflict rules. &lt;IMAGE&gt;</p>
申请公布号 EP0889412(A2) 申请公布日期 1999.01.07
申请号 EP19980305090 申请日期 1998.06.29
申请人 SUN MICROSYSTEMS, INC. 发明人 WEBBER, THOMAS P.;JOSHI, KETAN P.
分类号 G06F13/16;(IPC1-7):G06F13/16 主分类号 G06F13/16
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