4.5.3 SGI Default Register, GICR_SGIDR

This register controls the default value of SGI settings, for use in the case of a Double-bit Error Detect Error (DEDERR).

The GICR_SGIDR characteristics are:

Usage constraintsOnly accessible by Secure accesses.
ConfigurationsAvailable in all GIC-600 configurations. If SGI ECC is not enabled, then this register is RES0.
AttributesSee 4.5 Redistributor registers for SGIs and PPIs summary.

The following table shows the bit assignments.

Table 4-32 GICR_SGIDR bit assignments

Bits Name Function

[3] + 4n:

[63, 59, 55, 51, 47, 43, 39, 35, 31, 27, 23, 19, 15, 11, 7, 3]

- Reserved, RES0.

[2] + 4n:

[62, 58, 54, 50, 46, 42, 38, 34, 30, 26, 22, 18, 14, 10, 6, 2]

GRPMOD As GICR_IGRPMODR0 register.

[1] + 4n:

[61, 57, 53, 49, 45, 41, 37, 33, 29, 25, 21, 17, 13, 9, 5, 1]

GRP As GICR_IGROUPR0 register.

[0] + 4n:

[60, 56, 52, 48, 44, 40, 36, 32, 28, 24, 20, 16, 12, 8, 4, 0]

NSACR 1 = Allow Non-secure access to interrupt <n>.
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