ST STM32H7 Series User Manual

PM0214 Rev 9 59/262
PM0214 The STM32 Cortex-M4 instruction set
261
The CMSIS also provides a number of functions for accessing the special registers using
MRS and MSR instructions (see Table 23).
Table 22. CMSIS intrinsic functions to generate some Cortex-M4 instructions
Instruction CMSIS intrinsic function
CPSIE I void __enable_irq(void)
CPSID I void __disable_irq(void)
CPSIE F void __enable_fault_irq(void)
CPSID F void __disable_fault_irq(void)
ISB void __ISB(void)
DSB void __DSB(void)
DMB void __DMB(void)
REV uint32_t __REV(uint32_t int value)
REV16 uint32_t __REV16(uint32_t int value)
REVSH uint32_t __REVSH(uint32_t int value)
RBIT uint32_t __RBIT(uint32_t int value)
SEV void __SEV(void)
WFE void __WFE(void)
WFI void __WFI(void)
Table 23. CMSIS intrinsic functions to access the special registers
Special register Access CMSIS function
PRIMASK
Read uint32_t __get_PRIMASK (void)
Write void __set_PRIMASK (uint32_t value)
FAULTMASK
Read uint32_t __get_FAULTMASK (void)
Write void __set_FAULTMASK (uint32_t value)
BASEPRI
Read uint32_t __get_BASEPRI (void)
Write void __set_BASEPRI (uint32_t value)
CONTROL
Read uint32_t __get_CONTROL (void)
Write void __set_CONTROL (uint32_t value)
MSP
Read uint32_t __get_MSP (void)
Write void __set_MSP (uint32_t TopOfMainStack)
PSP
Read uint32_t __get_PSP (void)
Write void __set_PSP (uint32_t TopOfProcStack)

ST STM32H7 Series Specifications

General

Brand	ST
Model	STM32H7 Series
Category	Computer Hardware
Language	English