at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 326

• Manufacturer Part Number: at91sam9g20-cu
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

27.8
27.8.1
The AIC is mapped at the address 0xFFFF F000. It has a total 4-Kbyte addressing space. This permits the vectoring fea-
ture, as the PC-relative load/store instructions of the ARM processor support only a ± 4-Kbyte offset.
Table 27-2.
Notes:
326
Offset
0x00
0x04
---
0x7C
0x80
0x84
---
0xFC
0x100
0x104
0x108
0x10C
0x110
0x114
0x118 - 0x11C
0x120
0x124
0x128
0x12C
0x130
0x134
0x138
0x13C
0x140
0x144
0x148
0x14C - 0x1E0
0x1EC - 0x1FC
Advanced Interrupt Controller (AIC) User Interface
1. The reset value of this register depends on the level of the external interrupt source. All other sources are cleared at reset,
2. PID2...PID31 bit fields refer to the identifiers as defined in the Peripheral Identifiers Section of the product datasheet.
3. Values in the Version Register vary with the version of the IP block implementation.
AT91SAM9G20 Preliminary
Base Address
thus not pending.
Register Mapping
Register
Source Mode Register 0
Source Mode Register 1
---
Source Mode Register 31
Source Vector Register 0
Source Vector Register 1
---
Source Vector Register 31
Interrupt Vector Register
FIQ Interrupt Vector Register
Interrupt Status Register
Interrupt Pending Register
Interrupt Mask Register
Core Interrupt Status Register
Reserved
Interrupt Enable Command Register
Interrupt Disable Command Register
Interrupt Clear Command Register
Interrupt Set Command Register
End of Interrupt Command Register
Spurious Interrupt Vector Register
Debug Control Register
Reserved
Fast Forcing Enable Register
Fast Forcing Disable Register
Fast Forcing Status Register
Reserved
Reserved
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
AIC_SMR31
AIC_SVR31
AIC_EOICR
AIC_SMR0
AIC_SMR1
AIC_FFDR
AIC_SVR0
AIC_SVR1
AIC_FFER
AIC_FFSR
AIC_CISR
AIC_IECR
AIC_IDCR
AIC_ICCR
AIC_ISCR
AIC_DCR
AIC_FVR
AIC_SPU
AIC_IMR
AIC_IVR
AIC_ISR
AIC_IPR
Name
---
---
---
---
---
Read-write
Read-write
Read-write
Read-write
Read-write
Read-write
Read-write
Read-write
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only
Write-only
Write-only
Write-only
Write-only
Write-only
Write-only
Write-only
Read-only
Access
---
---
---
---
---
6384B–ATARM–15-Dec-08
Reset
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
0x0
---
---
---
---
---
---
---
---
---
---
---
---
(1)