4.5.4 Configuration ID0 Register, GICR_CFGID0

This register returns information about the configuration of the Redistributors.

The GICR_CFGID0 characteristics are:

Usage constraintsThere are no usage constraints.
ConfigurationsAvailable in all GIC-600 configurations.
AttributesSee 4.5 Redistributor registers for SGIs and PPIs summary.

The following figure shows the bit assignments.

Figure 4-25 GICR_CFGID0 bit assignments
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The following table shows the bit assignments.

Table 4-33 GICR_CFGID0 bit assignments

Bits Name Function
[31:28] Af3Width Affinity 3 width.
[27:24] Af2Width Affinity 2 width.
[23:20] Af1Width Affinity 1 width.
[19:16] Af0Width Affinity 0 width.
[15:12] TGT0ListWidth The Target0 list width - 1.
[11] ECCSupport 1 = ECC is supported.
[10:9] - Reserved, RAZ.
[8:0] PPINumber


The ppi_id[15:0] tie-off signal sets the value of the ID. Each Redistributor must have a unique ID.

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