5.2.2. Disabling the I-SRAM

You can disable the I-SRAM by clearing bit 18 of the CP15 control register. See Register 1, Control registerfor details of how to read and write the CP15 control register. When you have disabled the I-SRAM, all future ARM9E-S instruction fetches access the AHB.


The contents of the SRAM are preserved when it is disabled. If it is re-enabled, accesses to previously initialized SRAM locations return the preserved data.

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