4.2.12 Peripheral ID4 register, GICD_PIDR4

This register returns byte[4] of the peripheral ID. The GICD_PIDR4 register is part of the set of Distributor peripheral identification registers.

The GICD_PIDR4 characteristics are:

Usage constraintsThere are no usage constraints.
ConfigurationsAvailable in all GIC-600 configurations.
AttributesSee 4.2 Distributor registers (GICD/GICDA) summary.

The following figure shows the bit assignments.

Figure 4-12 GICD_PIDR4 bit assignments
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The following table shows the bit assignments.

Table 4-15 GICD_PIDR4 bit assignments

Bits Name Function
[31:8] -

Reserved, RAZ.

[7:4] SIZE

Indicates the amount of memory that the GIC-600 occupies. Log2 of the number of 4KB pages from the start to the end of the GIC-600 component ID registers.


[3:0] DES_2

Bits[10:7] of the JEDEC JEP106 identification code. Together, PIDR1.DES_0, PIDR2.DES_1, and PIDR4.DES_2 identify the component designer.


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