| 摘要 |
PROBLEM TO BE SOLVED: To efficiently transfer data even when a bit width of effective data on a transfer bus varies, and to perform an orthogonal transform, in a circuit performing the orthogonal transform of a data array. SOLUTION: A path setting circuit (122) changing over a data transfer path according to the effective transfer data bit width is provided between a data bus (96) and an orthogonal memory cell array (110), and a writing area is set by read/write circuits (113a-113d) according to the bit width of the data transferred through the bus. Thereby, in the orthogonal memory cell array (110), the effective data can be stored in different entries according to the bit width of the effective data. COPYRIGHT: (C)2007,JPO&INPIT |
