| 摘要 |
PROBLEM TO BE SOLVED: To provide a data processor, a data processing system and a data processing method with high effect of reduction of power consumption in the whole system. SOLUTION: A register file part 31 outputs register file signals DX1, DXb in data restoration circuits 32Xa, 32Xb via a bus PB1, respectively. The data restoration circuits 32Xa, 32Xb restore data signals Da, Db from the register file signals DXa, DXb based on data inversion/non-inversion signals BFz, BFb simultaneously transferred via the bus PB1, respectively. An operator device 35 computes the data signals Da, Db to output a data signal Dc. A data conversion circuit 32Y performs inversion or non-inversion of a data signal Dc by every bit column according to a data inversion/non-inversion signal BFc generated based on the data signal Dc to output a conversion data signal DXc. COPYRIGHT: (C)2006,JPO&NCIPI |
