- Instruction Cache size bytes
- 65536
- Instruction Cache ways
- 4
- Instruction Cache line size bytes
- 128
- Instruction Cache line locking
- Selected
- Instruction Cache memory errors
- Not Selected
- Dynamic Way Disable
- Not Selected
- Associativity: - 1 through 4 way associativity is supported.
- Size: Total cache size of all configured ways. Minimum size of a way is 512
bytes; minimum cache size is 1KB.
- Line Size: Size of a cache line in bytes. The critical word first
option can be used to reduce the penalty when a line is being filled from external
memory.
- Line Locking: keeps a line in the cache until it
is unlocked. Once locked, the line behaves similar to local memory. This is useful
when working with a small piece of code without incurring an expense of having a
local memory. Refer to the Local Memory Usage and Options chapter in the appropriate
Xtensa Microprocessor Data Book for more information.
The dynamic cache way disable capability gives the ability to disable and re-enable the
use of cache ways in both Instruction- Cache and Data-Cache independently to facilitate
power savings. New and modified instructions enable the user to clean cache ways before
disabling them and to initialize cache ways while enabling them. When a Cache Way is
disabled, it removes that cache memory block from service. Therefore it reduces total
cache capacity by 1/(number of ways in service).
Restriction: LX6/X11++
only.