| 摘要 |
PROBLEM TO BE SOLVED: To provide a master-slave system guaranteeing that a signal is accurately transmitted even when a master and a slave each have a different operation frequency or bit width of a bus. SOLUTION: An output signal from the master 12_1 is input to an asynchronous first FIFO (First In First Out) 14, an input signal to the slave 11_1, output from the master 12_1 through a bus 13 is input to an asynchronous second FIFO 15, output signals corresponding to each other output the first and second FIFOs 14, 15 are sequentially compared by a comparator 16, and an error signal ERR is output when discordance is detected. COPYRIGHT: (C)2009,JPO&INPIT
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