4.3.4 Revision ID Register

The REVIDR provides implementation-specific minor revision information that can only be interpreted in conjunction with the MIDR.

Usage constraints
The REVIDR is only accessible in privileged mode.
Available in all configurations.
See the c0 register summary, 4.2.1 c0 registers.

The following figure shows the REVIDR bit assignments.

Figure 4-4 REVIDR bit assignments
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The following table shows the REVIDR bit assignments.

Table 4-21 REVIDR bit assignments

Bits Name Function
[31:0] ID number Implementation-specific revision information. The reset value is determined by the specific Cortex®‑R8 processor implementation.

To access the REVIDR, read the CP15 register with:

MRC p15,0,<Rd>,c0,c0,6 ; read Revision ID register
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