| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a system with high processing capability that controls access of each DSP to a RAM section under the control of a CPU. SOLUTION: A real time traffic transmission/reception processing unit is provided with a CPU section, a DSP section group comprising a plurality of DSP sections, an external RAM section that exchanges voice packets between the CPU section and the DSP section group, a means that places an access right to the RAM section through interrupt from the CPU section for a prescribed period by each DSP when the CPU section controls a plurality of the DSP section groups, and a means that shifts interrupt timing by a time permissible to each DSP so as to obtain a period where no access is overlapped to the external RAM.</p> |
