| 摘要 |
PURPOSE:To perform an automatic test of a network control adaptor, by installing a decode circuit which transmits peculiar identification information and switching a control circuit which transmits a special test completion signal. CONSTITUTION:When number information from CPU, for example, DSI is transmitted, the information is returned from an interface circuit 103 by passing through a control section 101 and an order control section 12 and input to a test circuit 105. The test circuit 105 decodes this information by a decode circuit 301 and if the information is the special one, transmits the peculiar identification information Ji to the contents of the information and at the same time, transmits the timing signal G to input it to a switching control circuit 302. Then, transmission of PND (requirement of next number) signal is stopped from this control circuit 302 and signal, DSC (completion of connection) corresponding to the contents of the information Ji is transmitted instead of this. Next, this signal is returned at the circuit 103 and is transmitted to CPU side through control sections 102 and 101. |
