Memory Controller Bitmap Data Transfer

The patent applies preliminary action by pre-generating a bitmap that marks valid and invalid data chunks before the data transfer operation. This bitmap is included in the transfer command, allowing the memory device to automatically identify and skip invalid chunks without requiring multiple sequential commands. The preliminary preparation of the bitmap resolves the contradiction by enabling single-command transfers that maintain accuracy while reducing latency.

The patent introduces a bitmap as an intermediary element that mediates between the host system and memory device. This bitmap serves as a guide that tells the memory device which data chunks to transfer and which to skip, eliminating the need for multiple commands with complex signaling. The intermediary bitmap enables accurate data transfer while minimizing communication overhead and latency.

The patent merges multiple data transfer operations into a single command by incorporating a bitmap that identifies all valid data chunks to be transferred. Instead of issuing separate commands for each valid chunk, the system combines the transfer instructions and validity markers into one unified command. This merging approach maintains data integrity through the bitmap guidance while significantly reducing signaling overhead.

The patent changes the parameter structure of the transfer command by adding a bitmap parameter that encodes validity information for multiple data chunks. This parameter change transforms the command format to include efficiency information, allowing the memory device to selectively transfer only valid chunks in a single operation. The parameter enhancement maintains reliability while reducing the number of commands needed.