You copied the Doc URL to your clipboard.

1.8. Protection unit

The protection unit allows memory to be partitioned and individual attributes set for each protection region. Both the instruction and data address space can be divided into eight regions of variable size.

Figure 1. Protection unit block Diagram

Figure 1. Protection unit block Diagram

The protection attributes for each region can specify the properties of cachable, bufferable, user access, supervisor access, etc. The protection unit is programmed from the CP15 registers.

Was this page helpful? Yes No