Nios II 软件开发人员手册中的缓存和紧耦合存储器部分Nios® II embedded processor cores can contain instruction and data caches. Thischapter discusses cache-related issues that you need to consider to guarantee thatyour program executes correctly on the Nios II processor. Fortunately, most softwarebased on the Nios II hardware abstraction layer (HAL) works correctly without anyspecial accommodations for caches. However, some software must manage the cachedirectly. For code that needs direct control over the cache, the Nios II architectureprovides facilities to perform the following actions: