| 摘要 |
PROBLEM TO BE SOLVED: To achieve parallel processing of low-priority memory access without lowering efficiency of high-priority memory access. SOLUTION: This memory controller divides a memory access request, decides priority of the memory access requests, and distribute them to a high-priority command buffer 105 holding the high-priority memory access request and a low-priority command buffer 106 holding the low-priority memory access request. The memory controller compares the high-priority memory access request and the low-priority memory access request, determines execution order of memory commands, and performs control to select and execute the high-priority memory access request and the low-priority memory access request according to the execution order of the memory commands. COPYRIGHT: (C)2011,JPO&INPIT
|
