| 摘要 |
PURPOSE:To attain a generated polynomial arithmetic device containing different generator polynomials with just a single type of LSI, by providing an exclusive OR circuit for the selection of generated polynomial for each track, in a parallel data processing system for plural tracks. CONSTITUTION:A generator polynomial arithmetic device for syndrome used to the error correcting circuit of a magnetic tape controller of high density is provided with input lines 54-60 for selection of generated polynomials, data bus line 51, exclusive OR circuit 23 for selection of generator polynomial, exclusive OR circuit 24 and a latch circuit 24. The lines 54-60 are used as LSI input signal lines and matched with the values of generator polynomials outside an LSI. Then a generator polynomial input line is set at level ''0'' for the function unnecessary part of the circuit 23. |
