at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 336

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

27.8.15
Register Name:
Access Type:
Reset Value:
• SIVR: Spurious Interrupt Vector Register
The user may store the address of a spurious interrupt handler in this register. The written value is returned in AIC_IVR in
case of a spurious interrupt and in AIC_FVR in case of a spurious fast interrupt.
27.8.16
Register Name:
Access Type:
Reset Value:
• PROT: Protection Mode
0 = The Protection Mode is disabled.
1 = The Protection Mode is enabled.
• GMSK: General Mask
0 = The nIRQ and nFIQ lines are normally controlled by the AIC.
1 = The nIRQ and nFIQ lines are tied to their inactive state.
336
31
23
15
31
23
15
7
–
–
–
7
–
AT91SAM9G20 Preliminary
AIC Spurious Interrupt Vector Register
AIC Debug Control Register
30
22
14
30
22
14
AIC_SPU
0x0
6
AIC_DCR
0x0
–
–
–
6
–
Read-write
Read-write
29
21
13
29
21
13
5
–
–
–
5
–
28
20
12
28
20
12
4
–
–
–
4
–
SIVR
SIVR
SIVR
SIVR
27
19
11
27
19
11
3
–
–
–
3
–
26
18
10
26
18
10
2
–
–
–
2
–
GMSK
25
17
25
17
9
1
–
–
9
–
1
6384B–ATARM–15-Dec-08
PROT
24
16
24
16
8
0
–
–
8
–
0