4.1. About the protection unit

The protection unit allows you to partition memory and set individual protection attributes for each protection region. You can divide the address space into eight regions of variable size.

Figure 4.1 shows a simplified block diagram of the protection unit.

Figure 4.1. ARM946E-S protection unit

The protection unit is programmed using CP15 registers 1, 2, 3, 5, and 6 (see CP15 register map summary).

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