ARM ARM1176JZF-S - Table 3-63 Instruction Fault Status Register Bit Functions; Table 3-64 Results of Access to the Instruction Fault Status Register

System Control Coprocessor
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Table 3-63 lists how the bit values correspond with the Instruction Fault Status Register
functions.
Table 3-64 lists the results of attempted access for each mode.
Table 3-63 Instruction Fault Status Register bit functions
Bits
Field
name
Function
[31:13] - UNP/SBZ.
[12] SD Indicates whether an AXI Decode or Slave error caused an abort. This bit is only valid for
external aborts. For all other aborts this bit Should Be Zero. See Fault status and address on
page 6-34:
0 = AXI Decode error caused the abort, reset value
1 = AXI Slave error caused the abort.
[11] - UNP/SBZ.
[10] - Part of the Status field, see bits [3:0] in this table.
Always 0.
[9:4] - UNP/SBZ.
[3:0] with
bit[10] = 0
Status Indicates type of fault generated.
See Fault status and address on page 6-34 for full details of Domain and FAR validity, and
priorities:
b0000 = no function, reset value
b0001= Alignment fault
b0010 = Instruction debug event fault
b0011 = Access Bit fault on Section
b0100 = no function
b0101 = Translation Section fault
b0110 = Access Bit fault on Page
b0111 = Translation Page fault
b1000 = Precise external abort
b1001 = Domain Section fault
b1010 = no function
b1011 = Domain Page fault
b1100 = External abort on translation, first level
b1101 = Permission Section fault
b1110 = External abort on translation, second level
b1111 = Permission Page fault.
Table 3-64 Results of access to the Instruction Fault Status Register
Secure Privileged Non-secure Privileged
User
Read Write Read Write
Secure data Secure data Non-secure data Non-secure data Undefined exception