| 摘要 |
PURPOSE:To attain the automatic logic designing and to decrease the designing processes at the logic designing stage, by detecting an area requiring the fault detecting logic based on the descriptions about the data structure and a logical action. CONSTITUTION:The data structure is described in terms of the logic elements such as the registers, memories, input/output signals, etc. which are contained in a digital logical system. These logical elements are analyzed and the results of these analyses are stored in a logical element table 12. While the operation is described in terms of the transfer of data carried out between logical elements. Then the results of analyses are stored in a transfer operation table 13. A fault detection data producing part 11 retrieves both tables 12 and 13 to detect an area requiring the production logic for fault detection data (parity bit). Then the standard pattern of the parity bit production logic to be stored in a library 14 is read out and controlled to be fitted to the area requiring said production logic. Thus the parity bit production logic is secured.
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