CRC operation unit and CRC operation method

摘要: To enable high-speed CRC operation and flexible use of various generating polynomials without causing significant increase in circuit scale, the unit uses circuits generally provided for a DSP some additional circuits. The includes: polynomial supply section having first general register storing an arbitrary selector selectively outputting or data which all bits has value 0; memory, shift register, second barrel shifter, based on transmitting/receiving data; performing using output from section; instruction execution control controlling operations above sections.