| 摘要 |
According to one embodiment, a semiconductor memory device includes a memory cell array, a buffer unit, an error correction unit, a data transfer unit, a memory unit, a data input/output unit, a data bus, and a control unit. The control unit controls a first operating mode in which the memory unit is used and a second operating mode in which the memory unit is not used. In the second operating mode, the data transfer unit transfers the data supplied to the input/output unit through the data bus, to the data buffer unit, transfers the data transferred to the data buffer, to the error correction unit and transfers parity data generated in the error correction unit, to the buffer unit. |
