| 摘要 |
PURPOSE: To simplify the constitution of a circuit by unnecessitating the increase of buses even when the quantity of plural DSPs which need to boot a program from outsides is increased. CONSTITUTION: CPU 1 managing programs for all the DSPs on the circuit outputs programs for DSPs 41, 42,..., 42n right under CPU 1 itself from ROM 2 storing these programs to dual ports RAMs 31, 32,..., 3n and releases the reset of DSPs 41, 42,..., 4n by a reset control line 5 for starting. Next, CPU 1 outputs programs for DSPs 71, 72,..., 7n to dual port RAMs 61, 62,..., 6n by way of the dual port RAMs 31, 32,..., 3n and DSPs 41, 42,..., 4n. Then, DSPs 41, 42,..., 4n release the reset of DSPs 71, 72,..., 7n by a reset control line 8 for starting. |
