Instruction Fault Status Register (IFSR)

The IFSR holds status information about the last instruction fault. More...

Content
	IFSR Bits
	Bit position and mask macros.

Data Structures
struct	IFSR_Type
	Bit field declaration for IFSR layout. More...

Functions
__STATIC_FORCEINLINE uint32_t	__get_IFSR (void)
	Get IFSR.
__STATIC_FORCEINLINE void	__set_IFSR (uint32_t ifsr)
	Set IFSR.

Description

The IFSR holds status information about the last instruction fault.

DFSR format when using the Short-descriptor translation table format

Bits	Name	Function
[31:13]	-	Reserved.
[12]	ExT	External abort type.
[11]	-	Reserved.
[10]	FS[4]	Fault status bits.
[9]	LPAE	Large Physical Address Extension.
[8:4]	-	Reserved.
[3:0]	FS[3:0]	Fault status bits.

DFSR format when using the Long-descriptor translation table format

Bits	Name	Function
[31:13]	-	Reserved.
[12]	ExT	External abort type.
[11:10]	-	Reserved.
[9]	LPAE	Large Physical Address Extension.
[8:6]	-	Reserved.
[5:0]	STATUS	Fault status bits.

Consider __get_IFSR and __set_IFSR to access this register.

Function Documentation

__get_IFSR()

__STATIC_INLINE uint32_t __get_IFSR

(

void

)

Get IFSR.

Returns

Instruction Fault Status Register value

This function returns the current value of the Instruction Fault Status Register (IFSR).

__set_IFSR()

__STATIC_INLINE void __set_IFSR

(

uint32_t

ifsr

)

Set IFSR.

Parameters

[in]

ifsr

Instruction Fault Status value to set

This function assigns the given value to the Instruction Fault Status Register (IFSR).