PURPOSE: To realize the application of a program compiled simply in an easy-to- understand step constitution by actuating a processor by means of down-circuit and up-circuit programs which are independent of each other.
CONSTITUTION: A down-circuit program Pd and an up-circuit program Pu are prepared independently of each other. Then the output processing OP is carried out in common to an NOR (normal) state and a TST (test) state under the program Pd. While the input processing IP is carried out in common to the NOR and TST states under the program Pu. Thus both programs Pd and Pu are run independently and alternately with each other under the control of a timer counter. As a result, a processor is actuated with use of a simple and easy-to-understand program.
| WO/2002/063861 | LOOP EXTENDER WITH COMMUNICATIONS, CONTROL, AND DIAGNOSTICS |
| JPH01264351 | REMOTE SUBSCRIBER TEST SYSTEM |
SOEJIMA TETSUO
MURANO KAZUO
