Control arrangements and methods for accessing block oriented nonvolatile memory

摘要

A memory system digitally communicates with a host device to provide data storage capacity for the host device. The memory system includes at least one module including a nonvolatile memory section that is made up of a plurality of memory devices and the module includes a bit density function to assign a storage density to each memory device such that one group of the memory devices is configured to store data at a high storage density and another group of the memory devices is configured to store data at a low storage density. The module independently performs the bit density function for the nonvolatile memory section of each module based on one or more module input parameters.

主权项

1. A memory system for digital data communication with a host device to provide data storage capacity for the host device, said memory system comprising:
at least one module including a nonvolatile memory section that is made up of a plurality of memory devices that are distinct from one another and the module includes a bit density function to assign a storage density to each memory device such that one group of the memory devices is configured to store data at a high storage density and another group of the memory devices is configured to store data at a low storage density, where the high storage density is greater than the low storage density, and the module independently performs the bit density setting function for the nonvolatile memory section of only that module based on one or more module input parameters; and a controller configured for said digital data communication with the host device and further configured for module digital data communication with the module such that any data flowing to and from the module passes through the controller.