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7.1. About the L1 memory system

The L1 memory system has:

  • separate instruction and data caches each with a fixed line length of 32 bytes

  • 64-bit data paths throughout the memory system

  • support for four sizes of memory page

  • export of memory attributes for external memory systems

  • support for Security Extensions.

The data side of the L1 memory system has:

  • two 32-byte linefill buffers and one 32-byte eviction buffer

  • a 4-entry, 64-bit merging store buffer.


You must invalidate the instruction cache, the data cache, TLB, and BTAC before using them.