| 摘要 |
PURPOSE:To check data as soon as a multiple is generated by applying 1/n multiplication to the data obtained by applying (n) multiplication to the input data given from outside and comparing the 1/n-multiplied data with the input data given from the outside. CONSTITUTION:The output of an n-multiple generating circuit 4, i.e., an (n) multiple of an external input data 1 is supplied to a 1/n-multiple generating circuit 5. Therefore it is decided that the output data of the circuit 4 is correct if the result of comparison of an n-multiple error detecting circuit 8 has coincidence. If no coincidence is obtained, it is possible to detect an error of the output data of the circuit 4. In the same way, the 2nd switch circuit 3 supplies the external input data 1 to the circuit 5 and the output of the circuit 5 is supplied to the circuit 4 through the 1st switch circuit 2. A 1/n-multiple error detecting circuit 7 detects the discordance between the output of the circuit 4 and the data 1 to perform check of errors. |
