SAM7L128_14 Datasheet, PDF (132/549 Pages) ATMEL Corporation – AT91SAM ARM-based Flash MCU

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
25
24
–
–
–
–
–
SVMST_ARM SVMST_PDC SVMST_EMAC
23
22
21
20
19
18
17
16
–
–
–
–
–
MST_ARM
MST_PDC
MST_EMAC
15
14
13
12
11
10
–
–
–
–
ABTTYP
9
8
ABTSZ
7
6
5
4
3
–
–
–
–
–
2
1
0
–
MISADD
UNDADD
• 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
• MST_EMAC: EMAC Abort Source
0: The last aborted access was not due to the EMAC.
1: The last aborted access was due to the EMAC.
SAM7L128/64 [DATASHEET]
6257B–ATARM–01-Feb-13
132