The main features of the MPU_L2CACHE are:
- 1024-KiB 16-way set-associative unified instruction/data cache
- 9-stage L2 pipeline
- L2 hit latency of 12 cycles
- Fixed line length of 64-bytes (16 words)
- L1 inclusive
- Physically indexed and tagged
- 16-way set-associative (maximum)
- Bank partitions to support streaming Neon loads and simultaneous (two) L2 requests
- Exclusive-D L2 cache fill policy
- Global-random replacement strategy
- Four dirty bits per cache line to minimize traffic to L3
- Low-leakage sleep mode (retention until accessed)
- Cache redundancy and repair