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4.4.28. AArch32 GIC system registers

Table 4.156 shows the GIC system registers in AArch32 state.

Table 4.156. AArch32 GIC system registers
NameCRnOp1CRmOp2TypeReset WidthDescription
ICC_SGI1R-0c12-WO-64-bitSGI Generation Register 1
ICC_ASGI1R1c12-WO-64-bitAlternate SGI Generation Register 1
ICC_SGI0R2c12-WO-64-bitSGI Generation Register 0
ICC_PMRc40c60RW0x0000000032-bitPriority Mask Register
ICC_IAR0c120c80RO-32-bitInterrupt Acknowledge Register 0
ICC_EOIR01WO-32-bitEnd Of Interrupt Register 0
ICC_HPPIR02RO-32-bitHighest Priority Pending Interrupt Register 0
ICC_BPR03RW0x0000000232-bitBinary Point Register 0
ICC_AP0R04RW0x0000000032-bitActive Priorities 0 Register 0
ICC_AP1R0c90RW0x0000000032-bitActive Priorities 1 Register 0
ICC_DIRc111WO-32-bitDeactivate Interrupt Register
ICC_RPR3RO-32-bitRunning Priority Register
ICC_IAR1c120RO-32-bitInterrupt Acknowledge Register 1
ICC_EOIR11WO-32-bitEnd Of Interrupt Register 1
ICC_HPPIR12RO-32-bitHighest Priority Pending Interrupt Register 1
ICC_BPR13RW0x00000003[a]32-bitBinary Point Register 1
ICC_CTLR4RW0x0000040032-bitInterrupt Control Register
ICC_SRE5RW0x0000000032-bitSystem Register Enable Register
ICC_IGRPEN06RW0x0000000032-bitInterrupt Group Enable Register 0
ICC_IGRPEN17RW0x0000000032-bitInterrupt Group Enable Register 1
ICH_AP0R04c80RW0x0000000032-bitInterrupt Controller Hyp Active Priorities Register (0,0)
ICH_AP1R0c90RW0x0000000032-bitInterrupt Controller Hyp Active Priorities Register (1,0)
ICC_HSRE5RW0x0000000032-bitSystem Register Enable Register for EL2
ICH_HCRc110RW0x0000000032-bitInterrupt Controller Hyp Control Register
ICH_VTR1RO0x9000000332-bitInterrupt Controller VGIC Type Register
ICH_MISR2RO0x0000000032-bitInterrupt Controller Maintenance Interrupt State Register
ICH_EISRc124c83RO0x0000000032-bitInterrupt Controller End of Interrupt Status Register
ICH_VMCR7RW0x004C000032-bitInterrupt Controller Virtual Machine Control Register
ICH_ELRSR5RO0x0000000F32-bitInterrupt Controller Empty List Register Status Register
ICH_LR0c120RW0x0000000032-bitInterrupt Controller List Register 0
ICH_LR11RW0x0000000032-bitInterrupt Controller List Register 1
ICH_LR22RW0x0000000032-bitInterrupt Controller List Register 2
ICH_LR33RW0x0000000032-bitInterrupt Controller List Register 3
ICH_LRC0c140RW0x0000000032-bitInterrupt Controller List Register 0
ICH_LRC11RW0x0000000032-bitInterrupt Controller List Register 1
ICH_LRC22RW0x0000000032-bitInterrupt Controller List Register 2
ICH_LRC33RW0x0000000032-bitInterrupt Controller List Register 3
ICC_MCTLR6c124RW0x0000040032-bitInterrupt Control Register for EL3
ICC_MSRE5RW0x0000000032-bitSystem Register Enable Register for EL3
ICC_MGRPEN17RW0x0000000032-bitInterrupt Controller Monitor Interrupt Group 1 Enable register

[a] This is the reset value in non-secure state. In secure state, the reset value is 0x00000002.


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