| 摘要 |
PURPOSE: To attain high speed arithmetic processing by an arithmetic processing unit such as a microprocessor and a DSP even when there is much arithmetic processing volume like picture processing. CONSTITUTION: The arithmetic processing unit S can execute asynchronous processing operation based upon hand shaking and is constituted of a digital signal processor(DSP) e.g. The unit S is provided with external terminals t1a to t5a to be connected to an extended arithmetic unit P and the unit P is provided with external terminals t1b to t5b to be connected to the unit S. Both the units S, P are mutually connected so as to transfer data through the external terminals t1a to t5a and t1b to t5b. The unit P is provided with an extended arithmetic unit 17, and at the time of executing operation having much arithmetic processing volume like filter operation and matrix operation in picture processing, data are sent to the unit 17 and operation is executed by the unit 17 having high arithmetic capacity. |
