发明名称 SEMICONDUCTOR INTEGRATED CIRCUIT AND INFORMATION STORAGE METHOD
摘要 <P>PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit and information storage method capable of shortening reading time for prefetch without generating an abnormal image. <P>SOLUTION: A semiconductor integrated circuit comprises: arbiter access monitor means 35 for monitoring the presence/absence of a peripheral circuit 14 for issuing a memory access request to a memory arbiter 15; burst read means 37 for issuing the memory access request to the memory arbiter when the peripheral circuit 14 does not issue the memory access request to the memory arbiter 15, and performing burst read for an instruction or data; buffer means 33 and 34 for storing the instruction or the data obtained by the burst read from a memory 23 in a CPU side, not in the memory arbiter; address decode means 31 for decoding an address of the instruction; and address determination means 32 for determining whether or not the instruction or the data is stored in the buffer means. If the instruction or the data is stored in the buffer means, the instruction or the data stored in the buffer means is supplied to the CPU. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012038065(A) 申请公布日期 2012.02.23
申请号 JP20100177262 申请日期 2010.08.06
申请人 RICOH CO LTD 发明人
分类号 G06F12/08;G06F13/28 主分类号 G06F12/08
代理机构 代理人
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