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ARBITER, ARBITRATING METHOD, AND PROGRAM
ARBITER, ARBITRATING METHOD, AND PROGRAM
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机译：结缘工具，结缘方法和程序
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摘要
PROBLEM TO BE SOLVED: To improve overall system performance when arbitrating transfer requests from a plurality of DMACs different in priority.;SOLUTION: The first write DMAC 15 transfers data, input for each line, to a memory within a one-line period. A necessary transfer time calculating part 121 in an arbiter 113 calculates time T2 to be required for transferring the requested data, based on a burst length, a bus width, and a necessary transfer rate Ra. A timer to be started with a line start signal measures a time T1 elapsed from the start of one line. When T1 is longer than T2, a wait request signal is asserted with respect to the transfer request from the first write DMAC 15 till T1 and T2 become equal.;COPYRIGHT: (C)2009,JPO&INPIT
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