|Home > Programmer's model > Distributor registers (GICD/GICDA) summary > Interrupt Error Registers, GICD_IERRRn|
These registers indicate the error status of a SPI. Each register monitors 32 SPIs and the GIC-600 has 30 registers, GICD_IERRR1-GICD_IERRR30.
The GICD_IERRRn characteristics are:
|Usage constraints||The Distributor provides up to 30 registers to support 960 SPIs. If you configure the GIC-600 to use fewer than 960 SPIs, it reduces the number of registers accordingly. For locations where interrupts are not implemented, the register is RAZ/WI.|
|Configurations||Available in all GIC-600 configurations.|
|Attributes||See 4.2 Distributor registers (GICD/GICDA) summary.|
The following figure shows the bit assignments.
The following table shows the bit assignments.
Table 4-13 GICD_IERRRn bit assignments
Indicates whether a SPI is in an error state:
0 = If read, the SPI is not in an error state and programming is valid. Write has no effect.
1 = If read, the SPI is in an error state and programming is not valid. Write clears the error.
Note:The SPI that a bit refers to depends on its bit position and the base address offset of the GICD_IERRRn.