| 摘要 |
<p>PROBLEM TO BE SOLVED: To actualize sound processing in real time by a nonvolatile memory as a single body which is easy to control without entailing an increase in the number of components and to improve the security. SOLUTION: This system is equipped with the nonvolatile memory 108 as the single body in which an A/D converter and D/A converter 101, a DSP 102, a CPU 109, and high-speed writable volatile memories SRAMs 106 and 107 are incorporated, and the SRAM 107 and a Flash memory 105 have independent buses. The interfaces of the DSP 102 and volatile memory 108 are connected to a data memory 104 of the DSP 102 and the Flash memory 105 is connected to the data memory 104 and a program memory 103 in the DSP 102.</p> |
