SLVSJM6 November 2025 MSPM0G5187
CPU Module
Functional
Limitation of disabling prefetch for CPUSS
CPU prefetch disable will not take effect if there is a pending flash memory access.
Disable the prefetcher, then issue a memory access to the shutdown memory (SHUTDNSTORE) in SYSCTL, this can be done with SYSCTL.SOCLOCK.SHUTDNSTORE0;
After the memory access completes the prefetcher will be disabled.
Example:
CPUSS.CTL.PREFETCH = 0x0; //disables prefetcher
SYSCTL.SOCLOCK.SHUTDNSTORE0; // memory access to shutdown memory