SLAZ753C October 2025 – November 2025 MSPM0C1103 , MSPM0C1103-Q1 , MSPM0C1104 , MSPM0C1104-Q1
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