Neural network data processing apparatus, method and electronic device

A neural network data processing apparatus, comprising:

• an instruction parsing module, configured to split a direct memory access (DMA) task into a plurality of subtasks and acquire configuration information of a data sub-block corresponding to each subtask, wherein the plurality of subtasks are in a one-to-one correspondence with data sub-blocks of transported neural network data;
• a data reading module, configured to read a first data sub-block according to the configuration information, wherein the first data sub-block is a data sub-block among data sub-blocks corresponding to the plurality of subtasks;
• a data processing module, configured to compress the first data sub-block;
• and
• a data write-out module, configured to output compressed data resulting from the compression of the first data sub-block.