L2 Cache

Armv9 Cortex-A720 L2 Memory System and L2 Cache

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Armv9 Cortex-A720 L2 Memory System and L2 Cache

Click the blue "Arm Selected" at the top left, and choose "Set as Favorite" 9 L2 Memory System The L2 memory system of the Cortex-A720 core connects the core to the DynamIQ Shared Unit-120 via the CPU bridge, which includes private L2 caches. The L2 cache is unified, with each Cortex-A720 core having a private … Read more

Interview Question: Can L2 Cache Be Removed When Using Only a Single Cortex-A Core?

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Interview Question: Can L2 Cache Be Removed When Using Only a Single Cortex-A Core?

Even when using only a single Cortex-A core, the L2 cache cannot be eliminated. Students at the Jingxin Training Camp have asked this question before, and the role of L2 cache is crucial. Why is that? The core issue is that the CPU operates too quickly, while accessing the external main memory is too slow. … Read more

SoC Design: When Network-On-Chip Meets Cache Coherency

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SoC Design: When Network-On-Chip Meets Cache Coherency

Many people have heard of the term cache coherency, but do not fully understand the considerations for System-on-Chip (SoC) devices, especially those using Network-on-Chip (NoC). To understand the current issues, one must first grasp the role of cache in the memory hierarchy. Cache in Memory Hierarchy The CPU has relatively few extremely fast registers. The … Read more