CMSIS-Core (Cortex-M)  Version 5.5.0
CMSIS-Core support for Cortex-M processor-based devices
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Core Register Access Functions

Core register Access functions related to TrustZone for Armv8-M. More...

Functions

uint32_t __TZ_get_CONTROL_NS (void)
 Get Control register (non-secure) More...
 
void __TZ_set_CONTROL_NS (uint32_t control)
 Set Control register (non-secure) More...
 
uint32_t __TZ_get_PSP_NS (void)
 Get Process Stack Pointer (non-secure) More...
 
void __TZ_set_PSP_NS (uint32_t topOfProcStack)
 Set Process Stack Pointer (non-secure) More...
 
uint32_t __TZ_get_MSP_NS (void)
 Get Main Stack Pointer (non-secure) More...
 
void __TZ_set_MSP_NS (uint32_t topOfMainStack)
 Set Main Stack Pointer (non-secure) More...
 
uint32_t __TZ_get_SP_NS (void)
 Get Stack Pointer (non-secure) More...
 
void __TZ_set_SP_NS (uint32_t topOfStack)
 Set Stack Pointer (non-secure) More...
 
uint32_t __TZ_get_PRIMASK_NS (void)
 Get Priority Mask (non-secure) More...
 
void __TZ_set_PRIMASK_NS (uint32_t priMask)
 Set Priority Mask (non-secure) More...
 
uint32_t __TZ_get_BASEPRI_NS (void)
 Get Base Priority (non-secure) More...
 
void __TZ_set_BASEPRI_NS (uint32_t basePri)
 Set Base Priority (non-secure) More...
 
uint32_t __TZ_get_FAULTMASK_NS (void)
 Get Fault Mask (non-secure) More...
 
void __TZ_set_FAULTMASK_NS (uint32_t faultMask)
 Set Fault Mask (non-secure) More...
 
uint32_t __TZ_get_PSPLIM_NS (void)
 Get Process Stack Pointer Limit (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always. More...
 
void __TZ_set_PSPLIM_NS (uint32_t ProcStackPtrLimit)
 Set Process Stack Pointer (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always. More...
 
uint32_t __TZ_get_MSPLIM_NS (void)
 Get Main Stack Pointer Limit (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always. More...
 
void __TZ_set_MSPLIM_NS (uint32_t MainStackPtrLimit)
 Set Main Stack Pointer Limit (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always. More...
 

Description

Core register Access functions related to TrustZone for Armv8-M.

Function Documentation

uint32_t __TZ_get_BASEPRI_NS ( void  )

Get Base Priority (non-secure)

Returns the current value of the non-secure Base Priority register when in secure state.

Returns
Base Priority register value
See Also
uint32_t __TZ_get_CONTROL_NS ( void  )

Get Control register (non-secure)

Returns the content of the non-secure Control register when in secure mode.

Returns
non-secure Control register value
See Also
uint32_t __TZ_get_FAULTMASK_NS ( void  )

Get Fault Mask (non-secure)

Returns the current value of the non-secure Fault Mask register when in secure state.

Returns
Fault Mask register value
See Also
uint32_t __TZ_get_MSP_NS ( void  )

Get Main Stack Pointer (non-secure)

Returns the current value of the non-secure Main Stack Pointer (MSP) when in secure state.

Returns
MSP register value
See Also
uint32_t __TZ_get_MSPLIM_NS ( void  )

Get Main Stack Pointer Limit (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always.

Returns the current value of the non-secure Main Stack Pointer Limit(MSPLIM) when in secure state.

Returns
MSPLIM register value
uint32_t __TZ_get_PRIMASK_NS ( void  )

Get Priority Mask (non-secure)

Returns the current state of the non-secure priority mask bit from the Priority Mask register when in secure state.

Returns
Priority Mask value
See Also
uint32_t __TZ_get_PSP_NS ( void  )

Get Process Stack Pointer (non-secure)

Returns the current value of the non-secure Process Stack Pointer (PSP) when in secure state.

Returns
PSP register value
See Also
uint32_t __TZ_get_PSPLIM_NS ( void  )

Get Process Stack Pointer Limit (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always.

Returns the current value of the non-secure Process Stack Pointer Limit (PSPLIM) when in secure state.

Returns
PSPLIM register value
uint32_t __TZ_get_SP_NS ( void  )

Get Stack Pointer (non-secure)

Returns the current value of the non-secure Stack Pointer (SP) when in secure state.

Returns
SP register value
void __TZ_set_BASEPRI_NS ( uint32_t  basePri)

Set Base Priority (non-secure)

Assigns the given value to the non-secure Base Priority register when in secure state.

Parameters
[in]basePriBase Priority value to set
See Also
void __TZ_set_CONTROL_NS ( uint32_t  control)

Set Control register (non-secure)

Writes the given value to the non-secure Control register when in secure state.

Parameters
[in]controlControl register value to set
See Also
void __TZ_set_FAULTMASK_NS ( uint32_t  faultMask)

Set Fault Mask (non-secure)

Assigns the given value to the non-secure Fault Mask register when in secure state.

Parameters
[in]faultMaskFault Mask value to set
See Also
void __TZ_set_MSP_NS ( uint32_t  topOfMainStack)

Set Main Stack Pointer (non-secure)

Assigns the given value to the non-secure Main Stack Pointer (MSP) when in secure state.

Parameters
[in]topOfMainStackMain Stack Pointer value to set
See Also
void __TZ_set_MSPLIM_NS ( uint32_t  MainStackPtrLimit)

Set Main Stack Pointer Limit (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always.

Assigns the given value to the non-secure Main Stack Pointer Limit (MSPLIM) when in secure state.

Parameters
[in]MainStackPtrLimitMain Stack Pointer value to set
void __TZ_set_PRIMASK_NS ( uint32_t  priMask)

Set Priority Mask (non-secure)

Assigns the given value to the non-secure Priority Mask register when in secure state.

Parameters
[in]priMaskPriority Mask
See Also
void __TZ_set_PSP_NS ( uint32_t  topOfProcStack)

Set Process Stack Pointer (non-secure)

Assigns the given value to the non-secure Process Stack Pointer (PSP) when in secure state.

Parameters
[in]topOfProcStackProcess Stack Pointer value to set
See Also
void __TZ_set_PSPLIM_NS ( uint32_t  ProcStackPtrLimit)

Set Process Stack Pointer (non-secure) Devices without Armv8-M Main Extensions (i.e. Cortex-M23) lack the non-secure Stack Pointer Limit register hence zero is returned always.

Assigns the given value to the non-secure Process Stack Pointer Limit (PSPLIM) when in secure state.

Parameters
[in]ProcStackPtrLimitProcess Stack Pointer Limit value to set
void __TZ_set_SP_NS ( uint32_t  topOfStack)

Set Stack Pointer (non-secure)

Assigns the given value to the non-secure Stack Pointer (SP) when in secure state.

Parameters
[in]topOfStackStack Pointer value to set