MEMORY MANAGEMENT UNIT, IMAGE PROCESSING DEVICE, AND INTEGRATED CIRCUIT

摘要

A memory management unit manages a state of a memory which is to be accessed by bank interleaving. The memory includes p banks (where p is an integer of 2 or greater). The memory management unit includes a control unit that dynamically determines a bank to be accessed from among the p banks. When predetermined conditions for a reserving state of the memory are satisfied and there is any unused bank in the p banks, the control unit performs power consumption reduction to control the memory to cause power consumption of the unused bank(s) to be less than power consumption of other banks in the p banks except the unused bank(s).