Storing and Reading Arrays of Data in Data Processing Systems Comprising a Plurality of Memory Banks

In a data processing system that comprises a memory 8 comprising N memory banks 11, a memory controller is configured to store one or more N data unit×N data unit arrays of data in the memory 8 such that each data unit in each row of each N×N data unit array is stored in a different memory bank of the N memory banks 11, and such that each data unit in each column of each N×N data unit array is stored in a different memory bank of the N memory banks 11.