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3.3.48. Component ID1 Register

The COMPID1 Register characteristics are:

Purpose

Indicates that the identification registers are present, and also indicates the component class.

Configurations

Present in all configurations.

Figure 3.48 shows the COMPID1 Register bit assignments.

Figure 3.48. COMPID1 Register bit assignments

Figure 3.48. COMPID1 Register bit assignments

Table 3.49 shows the COMPID1 Register bit assignments.

Table 3.49. COMPID1 Register bit assignments
BitsNameFunction
[31:8]Reserved

Reserved.

[3:0]Preamble

Contains bits [11:8] of the component identification.

0x0

Identification value.

[7:4]Class

Class of the component. For example, ROM table, CoreSight component constitutes bits [15:12] of the component identification.

0x9

Indicates the component is a CoreSight component.


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