Abstract: In a calculation processing device for calculating inputted data to output the result of the calculation, a number-of-calculation generator generates the numbers of parallel and serial calculations based on the data length of the received data. When a calculation enable generator applies a parallel enabling signal or a serial enabling signal to an input controller in order to control the numbers of these calculations, the received data is inputted to a calculation processor in parallel during an input period of the parallel enabling signal, and is inputted to the calculation processor in serial during an input period of the serial enabling signal. The calculation processor performs parallel and serial processes for the inputted data to output the results of the processes on an output.

Abstract: A code error detector includes an input data generator and a code calculator. The input data generator divides received data into a plurality of data blocks, each including the same number of code bits as a predetermined number of parallel processes. The code calculator receives, as a parallel input, the code bits of each of the data blocks and applies a parallel calculation based on a predetermined generator polynomial on the data blocks to perform an error detection process. When a bit is missing from any of the data blocks, the input data generator inserts a dummy bit into a bit position of the missing bit.