PrimeCell Generic Interrupt Controller (PL390) Technical Reference Manual: 3.2.2. Distributor Implementer Identification Register (ICDIIDR)

The dist_ident Register characteristics are:

Purpose: Provides information about the implementer of the Distributor and the revision of the GIC.
Usage constraints: No usage constraints.
Configurations: This register is available in all configurations of the GIC.
Attributes: See the register summary in Table 3.1.

Figure 3.4 shows the dist_ident Register bit assignments.

Figure 3.4. dist_ident Register bit assignments

Table 3.3 shows the dist_ident Register bit assignments.

Table 3.3. dist_ident Register bit assignments

Bits Name Function

[31:24] impl_ver Returns the product identifier. For a GIC (PL390) this field returns 0x00.

[23:12]

rev_num

Bits	Name	Function
[31:24]	impl_ver	Returns the product identifier. For a GIC (PL390) this field returns `0x00`.
[23:12]	rev_num	Returns the revision number of the GIC. For revision r0p0, this field returns `0x000`.
[11:0]	implementer	Returns the JEP106 code of the company that implemented the Distributor RTL, that is, ARM. It uses the following bit format: [11:8] = `0x4`, that is, the JEP106 continuation code for ARM [7] = 0 [6:0] = b0111011, that is, the JEP106 code [6:0] for ARM. See the JEDEC Standard Manufacturer’s Identification Code for information about JEP106.

Returns the revision number of the GIC. For revision r0p0, this field returns 0x000.

[11:0]

implementer

Returns the JEP106 code of the company that implemented the Distributor RTL, that is, ARM. It uses the following bit format:

See the JEDEC Standard Manufacturer’s Identification Code for information about JEP106.

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