ERROR DETECTOR, SEMICONDUCTOR DEVICE, AND ERROR DETECTION METHOD

摘要

PURPOSE: An error detector is provided to effectively detect an error of transmission data. CONSTITUTION: An error detector at a receiver comprises a feedback shift register(45). A shift direction in the feedback shift register(45) is opposite to a shift direction at a transmitter in generating a transmission bit string by using a specified generator polynomial. A reception bit string is inputted to the feedback shift register in reverse order to the transmission bit string was generated at the transmitter so that errors in the reception bit string is detected by obtaining the remainder. This reduces the processing time required for the error detection and increases efficiency in detecting errors in transmitted data