| 摘要 |
PROBLEM TO BE SOLVED: To provide a music creation device which does not impair processing speed of a micro-controller.SOLUTION: A data bus 10 is available while an address bus 11 is used for RAS/CAS(row address strobe/column address strobe) timing in order to indicate a reading address of a control program for the micro-controller 110. At that timing, music waveform data is read according to the address which is latched by an address latch circuit 3 for a sound source 100 by using a data bus 10, and an address of the next music waveform data is latched by the address latch circuit 3 by using the address bus 11, while on the contrary, reading the control program for the micro-controller 110 by using the data bus 10. |
