| 摘要 |
PURPOSE:To prevent wrongful rewrite of contents of a nonvolatile memory by enabling a control part to execute the test mode processing only at the time when the discrimination code stored in the discrimination code storage means of an operation part actually attached to a mobile radio equipment main body is related to the test mode processing. CONSTITUTION:A microcomputer (MCPU) 4 connected to a one-chip microcomputer (SCPU) 7 or 9 of an operation part 2 or an operation part 3 (for test) actually attached to a mobile radio equipment main body 1 requests the operation part 2 or 3 to send the discrimination code, and at the time of receiving the discrimination code as the response, the MCPU 4 discriminates whether this discrimination code is a discrimination code ID 2 related to the operation part 3 for test or not. Only when it is the discrimination code related to the test mode processing, the MCPU 4 in the mobile radio equipment main body 1 is enabled to execute the test mode processing. Thus, a danger that contents of the non-volatile memory is wrongfully rewritten is reduced. |
