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CoreSight SoC Technical Reference Manual - ARM Information Center

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Programmers Model<br />

31 8 7 4 3 0<br />

Reserved<br />

REVAND<br />

CMOD<br />

Figure 3-17 PIDR3 bit assignments<br />

Table 3-18 shows the bit assignments.<br />

Table 3-18 PIDR3 bit assignments<br />

Bits Name Function<br />

[31:8] Reserved -<br />

[7:4] REVAND Indicates minor errata fixes specific to the revision of the component being used, for example metal fixes after<br />

implementation. In most cases, this field is zero. <strong>ARM</strong> recommends that the component designers ensure that<br />

a metal fix can change this field if required, for example, by driving it from registers that reset to zero.<br />

0b0000 Indicates that there are no errata fixes to this component.<br />

[3:0] CMOD Indicates whether the customer has modified the behavior of the component. In most cases, this field is zero.<br />

The customer changes this value on modifications to this component.<br />

0b0000 Indicates that the customer has not modified this component.<br />

3.3.18 Component ID0 Register<br />

The CIDR0 characteristics are:<br />

Purpose<br />

A component identification register that indicates the identification<br />

registers are present.<br />

Usage constraints There are no usage constraints.<br />

Configurations<br />

This register is available in all configurations.<br />

Attributes See the register summary in Table 3-1 on page 3-3.<br />

Figure 3-18 shows the bit assignments.<br />

31 8 7 0<br />

Reserved<br />

PRMBL_0<br />

Figure 3-18 CIDR0 bit assignments<br />

Table 3-19 shows the bit assignments.<br />

Table 3-19 CIDR0 bit assignments<br />

Bits Name Function<br />

[31:8] Reserved -<br />

[7:0] PRMBL_0 Contains bits[7:0] of the component identification code.<br />

0x0D Bits[7:0] of the identification code.<br />

<strong>ARM</strong> DDI 0480D Copyright © 2011, 2012 <strong>ARM</strong>. All rights reserved. 3-22<br />

ID010213<br />

Non-Confidential

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