| 摘要 |
PURPOSE:To arbitrarily rewrite a code conversion table, and also, to execute the processing at a high speed, by using a RAM which can rewrite dynamically the code conversion table by a program, etc., in case of bringing a data to a code conversion. CONSTITUTION:An input data S1 from an external device 4 is sent to a code converting RAM 2 through a multiplexer 5. In a read means 7, when it is known by a control signal S7 that a data has been sent out of the external device 4, a read data S6 is read from the code converting RAM 2. The read data S6 which has been read from the read means 7 can be read as a data which has brought the input data S1 inputted from the external device 4, to a code conversion. In this way, the data which is to be brought to a code conversion can be brought to a code conversion by using the code converting RAM 2, and in this case, the code conversion can be processed at a high speed, since it is not executed by a microprogram. |
