| 摘要 |
In a mobile terminal including at least two CPUs and a shared memory resource, a CPU executing real-time code has priority access to the memory over a CPU executing non-real-time code. In one embodiment, real-time code and non-real-time code are located in separate regions of logical memory, and a memory management unit between the CPUs and the shared memory resource partially decodes the address of a memory access request, granting higher priority access to the CPU executing real-time code. In another embodiment, each CPU provides a priority signal upon requesting access to the shared memory resource, and access is granted according to the requested priorities.
|
