4.3.20. Configuration Base Address Register

The CBAR characteristics are:

Purpose

Holds the physical base address of the memory-mapped interrupt controller registers.

Usage constraints

The CBAR is a read-only register.

Configurations

Reset to PERIPHBASE[31:13] so that software can determine the location of the private memory region.

Attributes

See the register summary in Table 4.9.

Figure 4.23 shows the CBAR bit assignments.

Figure 4.23. CBAR bit assignments

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To access the CBAR, read the CP15 register with:

MRC p15, 4, <Rd>, c15, c0, 0; Read Configuration Base Address Register
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