Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet

67

SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]

11063K–ATARM–05-Nov-13

The AIC is mapped at the address 0xFFFF F000. It has a total 4-Kbyte addressing space. This permits the vectoring feature, as 
the PC-relative load/store instructions of the ARM processor support only a ± 4-Kbyte offset. 

Notes: 1. The reset value of this register depends on the level of the external interrupt source. All other sources are cleared at 

reset, thus not pending.

2. PID2...PID31 bit fields refer to the identifiers as defined in the Peripheral Identifiers Section of the product datasheet. 

0x00

Source Mode Register 0

AIC_SMR0

Read-write

0x0

0x04

Source Mode Register 1

AIC_SMR1

Read-write

0x0

–

–

–

–

–

0x7C

Source Mode Register 31

AIC_SMR31

Read-write

0x0

0x80

Source Vector Register 0

AIC_SVR0

Read-write

0x0

0x84

Source Vector Register 1

AIC_SVR1

Read-write

0x0

–

–

–

–

–

0xFC

Source Vector Register 31

AIC_SVR31

Read-write

0x0

0x100

Interrupt Vector Register

AIC_IVR

Read-only

0x0

0x104

FIQ Interrupt Vector Register

AIC_FVR

Read-only

0x0

0x108

Interrupt Status Register

AIC_ISR

Read-only

0x0

0x10C

Interrupt Pending Register

AIC_IPR

Read-only

0x110

Interrupt Mask Register

AIC_IMR

Read-only

0x0

0x114

Core Interrupt Status Register

AIC_CISR

Read-only

0x0

0x118 - 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 Interrupt Vector Register

AIC_SPU

Read-write

0x0

0x138

Debug Control Register

AIC_DCR

Read-write

0x0

0x13C

Reserved

–

–

–

0x140

Fast Forcing Enable Register

AIC_FFER

Write-only

–

0x144

Fast Forcing Disable Register

AIC_FFDR

Write-only

–

0x148

Fast Forcing Status Register

AIC_FFSR

Read-only

0x0

0x14C - 0x1E0

Reserved

–

–

–

0x1E4

Write Protect Mode Register

AIC_WPMR

Read-write

0x0

0x1E8

Write Protect Status Register

AIC_WPSR

Read-only

0x0

0x1EC - 0x1FC

Reserved