SEDC-BASED ERROR DETECTION APPARATUS FOR COMPARE UNIT AND SELF-CHECKING COMPARE UNIT HAVING THE APPARATUS

摘要

PURPOSE: A scalable error detection coding (SEDC)-based error detection apparatus for a compare unit and a self-checking compare unit including the same are provided to detect errors in comparison computations. CONSTITUTION: An error detection apparatus (100) comprises a comparison output generator (110), an input error detection code generator (120), and an error detector (130). The comparison output generator encodes results of comparison of binary input data from a compare unit into 2-bit comparison result data. An input error detection code generator receives binary input data, and generates input error detection codes that are error detection code depending on the comparison result of the binary input data. The error detector receives the comparison result data and generates 2-bit output error detection codes that are error detection codes for the comparison result data. The error detector outputs an error detection result by determining whether the output error detection codes are identical to the input error detection codes.