7.16.2. Disabling the MMU

To disable the MMU:

  1. Disable the WB by clearing bit 3 in the Control Register.

  2. Disable the IDC by clearing bit 2 in the Control Register.

  3. Disable the MMU by clearing bit 0 in the Control Register.

Disabling of all three functions may be done simultaneously.


If the MMU is enabled, disabled and subsequently re-enabled, the contents of the TLB are preserved. If these are now invalid, the TLB should be flushed before re-enabling the MMU.

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