| 摘要 |
A controller device (10) includes a space manager circuit (28) responsive to address information from a host (22) and operative to read, write and erase information in a nonvolatile memory unit (16) based on the host address information. The space manager circuit (28) assigns a predetermined number of blocks (202,204,206,208) in sequential order to each of the nonvolatile memory device, forms super block, each super block having blocks arranged in parallel, identifies a particular super block having at least two blocks, a first block being located in a first nonvolatile memory device and a second block being located in a second nonvolatile memory device, for erasure of the particular super block.
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