发明名称 MICROCOMPUTER INCORPORATED WITH DMA
摘要 <p><P>PROBLEM TO BE SOLVED: To provide a microcomputer for evaluation which is available commonly for the development of different microcomputers. <P>SOLUTION: This microcomputer is provided with: a CPU; a memory and a direct memory access controller (DMAC) for controlling access to a memory without using the CPU. This microcomputer is provided with: a plurality of peripheral resources having predetermined functions corresponding to respectively applied actual resource numbers for making an access request to the DMAC, and for performing data transfer with a memory; and a resource converting unit for performing signal conversion between the DMAC and the plurality of peripheral resources. Then, a partial peripheral resources among the plurality of peripheral resources are associated with the logical resource numbers of the DMAC by the resource converting unit. Thus, a plurality of peripheral resources are arbitrarily selected to construct a new microcomputer for evaluation to be developed, and the development costs of a chip for evaluation are decreased to shorten the development steps. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p>
申请公布号 JP2005284558(A) 申请公布日期 2005.10.13
申请号 JP20040095714 申请日期 2004.03.29
申请人 FUJITSU LTD 发明人 USUI MINORU
分类号 G06F13/14;G06F13/28;G06F15/78;(IPC1-7):G06F13/28 主分类号 G06F13/14
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