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1745D–ATARM–04-Nov-05
AT91M55800A
15.10 AIC User Interface
Base Address: 0xFFFFF000 (Code Label AIC_BASE)
Note: 1. The reset value of this register depends on the level of the External IRQ lines. All other sources are cleared at reset.
Table 15-2. AIC Memory Map
Offset Register Name Access Reset State
0x000 Source Mode Register 0 AIC_SMR0 Read/Write 0
0x004 Source Mode Register 1 AIC_SMR1 Read/Write 0
– – – Read/Write 0
0x07C Source Mode Register 31 AIC_SMR31 Read/Write 0
0x080 Source Vector Register 0 AIC_SVR0 Read/Write 0
0x084 Source Vector Register 1 AIC_SVR1 Read/Write 0
– – – Read/Write 0
0x0FC Source Vector Register 31 AIC_SVR31 Read/Write 0
0x100 IRQ Vector Register AIC_IVR Read-only 0
0x104 FIQ Vector Register AIC_FVR Read-only 0
0x108 Interrupt Status Register AIC_ISR Read-only 0
0x10C Interrupt Pending Register AIC_IPR Read-only see Note
(1)
0x110 Interrupt Mask Register AIC_IMR Read-only 0
0x114 Core Interrupt Status Register AIC_CISR Read-only 0
0x118 Reserved – – –
0x11C Reserved – – –
0x120 Interrupt Enable Command Register AIC_IECR Write-only –
0x124 Interrupt Disable Command Register AIC_IDCR Write-only –
0x128 Interrupt Clear Command Register AIC_ICCR Write-only –
0x12C Interrupt Set Command Register AIC_ISCR Write-only –
0x130 End of Interrupt Command Register AIC_EOICR Write-only –
0x134 Spurious Vector Register AIC_SPU Read/Write 0