5.4.6 How Do I Place Variables in Off-Chip Memory?

To locate variables in off-chip memory, use the __external__ type qualifier. To locate variables in off-chip memory across a Parallel Master Port (PMP), use the __pmp__ type qualifier.

The time required to access these variables is longer than for variables in the internal data memory. For details on accessing off-chip memory, see the following sections of this user’s guide:

__external__ Type Qualifier

__pmp__ Type Qualifier