发明名称 MUSICAL SOUND GENERATING DEVICE
摘要 PURPOSE:To shorten the parameter write execution time by writing the same parameter data in prescribed plural parameter storage positions by only executing one write instruction. CONSTITUTION:A comparator CO compares a channel address signal inputted to terminals CA0 to CA3 and a CH counter signal inputted to terminals TQ0 to TQ3, and when they coincide with each other, an equal signal EQ is outputted, and parameter data latched in a data latch DTL is written in shift registers R1 to RN. Also, by a state of a flag FL for showing whether the simultaneous write is executed to plural channels or not, the terminal CA1 and TQ1 of the comparator CO always coincide with each other, when a signal MASK is '1', and the signal EQ is sent out by a prescribed combination of the CA value and the TQ value. In such a way, it is possible to write simultane ously to plural parameter storage positions, and the parameter write execution time is shortened.
申请公布号 JPH02254496(A) 申请公布日期 1990.10.15
申请号 JP19890074978 申请日期 1989.03.29
申请人 YAMAHA CORP 发明人 MIYATA SATOSHI
分类号 G10H1/24;G10H1/18 主分类号 G10H1/24
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