System Control Register (SCTLR)

The SCTLR provides the top level control of the system, including its memory system. More...

Content
	SCTLR Bits
	Bit position and mask macros.

Data Structures
struct	SCTLR_Type
	Bit field declaration for SCTLR layout. More...

Functions
__STATIC_FORCEINLINE void	__set_SCTLR (uint32_t sctlr)
	Set SCTLR.
__STATIC_FORCEINLINE uint32_t	__get_SCTLR (void)
	Get SCTLR.

Description

The SCTLR provides the top level control of the system, including its memory system.

In a VMSAv7 implementation, the SCTLR bit assignments are:

Bits	Name	Function
[31]	-	Reserved.
[30]	TE	Thumb Exception enable.
[29]	AFE	Access flag enable bit.
[28]	TRE	TEX remap enable bit.
[27:26]	-	Reserved.
[25]	EE	Exception Endianness bit.
[24:21]	-	Reserved.
[20]	UWXN	Unprivileged write permission implies PL1 Execute Never (XN).
[19]	WXN	Write permission implies Execute Never (XN).
[18:14]	-	Reserved.
[13]	V	Vectors bit.
[12]	I	Instruction cache enable bit.
[11]	Z	Branch prediction enable bit.
[10]	SW	SWP and SWPB enable bit.
[9:3]	-	Reserved.
[2]	C	Cache enable bit.
[1]	A	Alignment bit.
[0]	M	Address translation enable bit.

Consider using __get_SCTLR and __set_SCTLR for accessing this register.

Function Documentation

__get_SCTLR()

__STATIC_INLINE uint32_t __get_SCTLR

(

void

)

Get SCTLR.

Returns

System Control Register value

This function returns the value of the System Control Register (SCTLR).

__set_SCTLR()

__STATIC_INLINE void __set_SCTLR

(

uint32_t

sctlr

)

Set SCTLR.

This function assigns the given value to the System Control Register.

Parameters

[in]

sctlr

System Control Register value to set

This function assigns the given value to the System Control Register (SCTLR).