SAM7S32_14 Datasheet, PDF (103/775 Pages) ATMEL Corporation – Internal High-speed Flash

18.4.2 MC Abort Status Register
Register Name:
MC_ASR
Access Type:
Read-only
Reset Value:
0x0
Offset:
0x04
31
30
29
28
27
26
–
–
–
–
–
–
23
22
21
20
19
18
–
–
–
–
–
–
15
14
13
12
11
10
–
–
–
–
ABTTYP
7
6
5
4
3
2
–
–
–
–
–
–
• UNDADD: Undefined Address Abort Status
0: The last abort was not due to the access of an undefined address in the address space.
1: The last abort was due to the access of an undefined address in the address space.
• MISADD: Misaligned Address Abort Status
0: The last aborted access was not due to an address misalignment.
1: The last aborted access was due to an address misalignment.
• ABTSZ: Abort Size Status.
ABTSZ
0
0
0
1
1
0
1
1
• ABTTYP: Abort Type Status.
Abort Size
Byte
Half-word
Word
Reserved
ABTTYP
0
0
0
1
1
0
1
1
Abort Type
Data Read
Data Write
Code Fetch
Reserved
• MST0: PDC Abort Source
0: The last aborted access was not due to the PDC.
1: The last aborted access was due to the PDC.
25
SVMST1
24
SVMST0
17
MST1
16
MST0
9
8
ABTSZ
1
MISADD
0
UNDADD
• MST1: ARM7TDMI Abort Source
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
103