Cortex-M3 Processor Registers
2.7.4.39 MMFAR Register (Offset = D34h) [reset = X]
MMFAR is shown in
and described in
.
Mem Manage Fault Address
This register is used to read the address of the location that caused a Memory Manage Fault.
Figure 2-109. MMFAR Register
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
ADDRESS
R/W-X
Table 2-135. MMFAR Register Field Descriptions
Bit
Field
Type
Reset
Description
31-0
ADDRESS
R/W
X
Mem Manage fault address field.
This field is the data address of a faulted load or store attempt.
When an unaligned access faults, the address is the actual address
that faulted. Because an access can be split into multiple parts, each
aligned, this address can be any offset in the range of the requested
size. Flags CFSR.IACCVIOL, CFSR.DACCVIOL
,CFSR.MUNSTKERR and CFSR.MSTKERR in combination with
CFSR.MMARVALIDindicate the cause of the fault.
182
SWCU117C – February 2015 – Revised September 2015
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