Auxiliary Control Register (ACTLR)

The ACTLR provides IMPLEMENTATION DEFINED configuration and control options. More...

Content
	ACTLR Bits
	Bit position and mask macros.

Data Structures
struct	ACTLR_Type
	Bit field declaration for ACTLR layout. More...

Functions
__STATIC_FORCEINLINE void	__set_ACTLR (uint32_t actlr)
	Set ACTLR.
__STATIC_FORCEINLINE uint32_t	__get_ACTLR (void)
	Get ACTLR.

Description

The ACTLR provides IMPLEMENTATION DEFINED configuration and control options.

The ACTLR characteristics are differs between various Armv7-A implementations.

Cortex-A5

Bits	Name	Function
[31:29]	-	Reserved.
[28]	DBDI	Disable Branch Dual Issue
[27:19]	-	Reserved.
[18]	BTDIS	Disable indirect Branch Target Address Cache (BTAC).
[17]	RSDIS	Disable return stack operation.
[16:15]	BP	Branch prediction policy.
[14:13]	L1PCTL	L1 Data prefetch control.
[12]	RADIS	Disable Data Cache read-allocate mode.
[11]	DWBST	Disable AXI data write bursts to Normal memory.
[10]	DODMBS	Disable optimized data memory barrier behavior.
[9:8]	-	Reserved.
[7]	EXCL	Exclusive L1/L2 cache control.
[6]	SMP	Enables coherent requests to the processor.
[5:1]	-	Reserved.
[0]	FW	Cache and TLB maintenance broadcast.

Cortex-A7

Bits	Name	Function
[31:29]	-	Reserved.
[28]	DDI	Disable Dual Issue
[27:16]	-	Reserved.
[15]	DDVM	Disable Distributed Virtual Memory transactions.
[14:13]	L1PCTL	L1 Data prefetch control.
[12]	L1RADIS	L1 Data Cache read-allocate mode disable.
[11]	L2RADIS	L2 Data Cache read-allocate mode disable.
[10]	DODMBS	Disable optimized data memory barrier behavior.
[9:7]	-	Reserved.
[6]	SMP	Enables coherent requests to the processor.
[5:0]	-	Reserved.

Cortex-A9

Bits	Name	Function
[31:10]	-	Reserved.
[9]	PARITY	Support for parity checking, if implemented.
[8]	AOW	Enable allocation in one cache way only.
[7]	EXCL	Exclusive L1/L2 cache control.
[6]	SMP	Enables coherent requests to the processor.
[5:4]	-	Reserved.
[3]	WFLZM	Enable write full line of zeros modea.
[2]	L1PE	Dside prefetch.
[1]	-	Reserved.
[0]	FW	Cache and TLB maintenance broadcast.

Consider using __get_ACTLR and __set_ACTLR to access ACTRL register.

Function Documentation

__get_ACTLR()

__STATIC_INLINE uint32_t __get_ACTLR

(

void

)

Get ACTLR.

Returns

Auxiliary Control register value

This function returns the value of the Auxiliary Control Register (ACTLR).

__set_ACTLR()

__STATIC_INLINE void __set_ACTLR

(

uint32_t

actlr

)

Set ACTLR.

Parameters

[in]

actlr

Auxiliary Control value to set

This function assigns the given value to the Auxiliary Control Register (ACTLR).