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Distributor Implementer Identification Register, GICD_IIDR

This register provides information about the implementer and revision of the Distributor.

The GICD_IIDR characteristics are:

Usage constraintsThere are no usage constraints.
ConfigurationsAvailable in all GIC-600 configurations.
AttributesSee Distributor registers (GICD/GICDA) summary.

The following figure shows the bit assignments.

Figure 4-3 GICD_IIDR bit assignments

The following table shows the bit assignments.

Table 4-5 GICD_IIDR bit assignments

Bits Name Function
[31:24] ProductID

Indicates the product ID:

0x2 = GIC-600.

[23:20] - Reserved, RAZ.
[19:16] Variant

Indicates the major revision or variant of the product for the rmpn identifier:

0x0 = r0.

0x1 = r1.

[15:12] Revision

Indicates the minor revision of the product for the rmpn identifier:

0x1 = p0.

0x3 = p1.

0x4 = p2.

0x5 = p3.

0x6 = p4.

0x7 = p6.

[11:0] Implementer

Identifies the implementer:

0x43B = Arm.

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