3.15.48. Peripheral ID3 Register

The PIDR3 characteristics are:

Purpose

Part of the set of peripheral identification registers. Contains the REVAND and CMOD fields.

Usage constraints

There are no usage constraints.

Configurations

This register is available in all configurations.

Attributes

See the register summary in Table 3.151.

Figure 3.190 shows the bit assignments.

Figure 3.190. PIDR3 bit assignments

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Table 3.199 shows the bit assignments.

Table 3.199. PIDR3 bit assignments

BitsNameFunction
[31:8]Reserved

-

[7:4]REVAND

Indicates minor errata fixes specific to the revision of the component being used, for example metal fixes after implementation. In most cases, this field is 0b0000. ARM recommends that the component designers ensure that a metal fix can change this field if required, for example, by driving it from registers that reset to 0b0000.

0b0000

Indicates that there are no errata fixes to this component.

[3:0]CMOD

Customer Modified. Indicates whether the customer has modified the behavior of the component. In most cases, this field is 0b0000. Customers change this value when they make authorized modifications to this component.

0b0000

Indicates that the customer has not modified this component.


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