Data Fault Status Register (DFSR)

The DFSR holds status information about the last data fault. More...

Content
	ACTLR Bits
	Bit position and mask macros.

Data Structures
struct	DFSR_Type
	Bit field declaration for DFSR layout. More...

Functions
__STATIC_FORCEINLINE uint32_t	__get_DFSR (void)
	Get DFSR.
__STATIC_FORCEINLINE void	__set_DFSR (uint32_t dfsr)
	Set DFSR.

Description

The DFSR holds status information about the last data fault.

DFSR format when using the Short-descriptor translation table format

Bits	Name	Function
[31:14]	-	Reserved.
[13]	CM	Cache maintenance fault.
[12]	ExT	External abort type.
[11]	WnR	Write not Read bit.
[10]	FS[4]	Fault status bits.
[9]	LPAE	Large Physical Address Extension.
[8]	-	Reserved.
[7:4]	Domain	The domain of the fault address.
[3:0]	FS[3:0]	Fault status bits.

DFSR format when using the Long-descriptor translation table format

Bits	Name	Function
[31:14]	-	Reserved.
[13]	CM	Cache maintenance fault.
[12]	ExT	External abort type.
[11]	WnR	Write not Read bit.
[10]	-	Reserved.
[9]	LPAE	Large Physical Address Extension.
[8:6]	-	Reserved.
[5:0]	STATUS	Fault status bits.

Consider __get_DFSR and __set_DFSR to access this register.

Function Documentation

__get_DFSR()

__STATIC_INLINE uint32_t __get_DFSR

(

void

)

Get DFSR.

Returns

Data Fault Status Register value

This function returns the current value of the Data Fault Status Register (DFSR).

__set_DFSR()

__STATIC_INLINE void __set_DFSR

(

uint32_t

dfsr

)

Set DFSR.

Parameters

[in]

dfsr

Data Fault Status value to set

This function assigns the given value to the Data Fault Status Register (DFSR).