EFR32 Blue Gecko 12 Software Documentation
efr32bg12-doc-5.1.2
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Reset Management Unit (RMU) Peripheral API.
This module contains functions to control the RMU peripheral of Silicon Labs 32-bit MCUs and SoCs. The RMU ensures correct reset operation. It is responsible for connecting the different reset sources to the reset lines of the MCU or SoC.
Macros | |
#define | RMU_LockupResetDisable(A) RMU_ResetControl(rmuResetLockUp, A) |
Enumerations | |
enum | RMU_Reset_TypeDef { rmuResetLockUp = _RMU_CTRL_LOCKUPRMODE_MASK, rmuResetWdog = _RMU_CTRL_WDOGRMODE_MASK, rmuResetCoreLockup = _RMU_CTRL_LOCKUPRMODE_MASK, rmuResetSys = _RMU_CTRL_SYSRMODE_MASK, rmuResetPin = _RMU_CTRL_PINRMODE_MASK } |
enum | RMU_ResetMode_TypeDef { rmuResetModeDisabled = _RMU_CTRL_PINRMODE_DISABLED, rmuResetModeLimited = _RMU_CTRL_PINRMODE_LIMITED, rmuResetModeExtended = _RMU_CTRL_PINRMODE_EXTENDED, rmuResetModeFull = _RMU_CTRL_PINRMODE_FULL } |
Functions | |
void | RMU_ResetCauseClear (void) |
Clear the reset cause register. More... | |
uint32_t | RMU_ResetCauseGet (void) |
Get the cause of the last reset. More... | |
void | RMU_ResetControl (RMU_Reset_TypeDef reset, RMU_ResetMode_TypeDef mode) |
Disable/enable reset for various peripherals and signal sources. More... | |
__STATIC_INLINE uint32_t | RMU_UserResetStateGet (void) |
Get user reset state. This state is reset only by a Power-on-reset and a pin reset. More... | |
__STATIC_INLINE void | RMU_UserResetStateSet (uint32_t userState) |
Set user reset state. This state is reset only by a Power-on-reset and a pin reset. More... | |
#define RMU_LockupResetDisable | ( | A | ) | RMU_ResetControl(rmuResetLockUp, A) |
enum RMU_Reset_TypeDef |
void RMU_ResetCauseClear | ( | void | ) |
Clear the reset cause register.
This function clears all the reset cause bits of the RSTCAUSE register. The reset cause bits must be cleared by SW before a new reset occurs, otherwise reset causes may accumulate. See RMU_ResetCauseGet().
Definition at line 249 of file em_rmu.c.
References BUS_RegBitWrite(), EMU, EMU_Lock(), EMU_LOCK_LOCKKEY_LOCKED, EMU_Unlock(), RMU, and RMU_CMD_RCCLR.
Referenced by SLEEP_Init().
uint32_t RMU_ResetCauseGet | ( | void | ) |
Get the cause of the last reset.
In order to be useful, the reset cause must be cleared by software before a new reset occurs, otherwise reset causes may accumulate. See RMU_ResetCauseClear(). This function call will return the main cause for reset, which can be a bit mask (several causes), and clear away "noise".
Definition at line 291 of file em_rmu.c.
References EMU_BASE, RMU, RMU_RSTCAUSE_AVDDBOD, RMU_RSTCAUSE_DECBOD, RMU_RSTCAUSE_DVDDBOD, RMU_RSTCAUSE_EM4RST, RMU_RSTCAUSE_EXTRST, RMU_RSTCAUSE_LOCKUPRST, RMU_RSTCAUSE_SYSREQRST, and RMU_RSTCAUSE_WDOGRST.
Referenced by SLEEP_Init().
void RMU_ResetControl | ( | RMU_Reset_TypeDef | reset, |
RMU_ResetMode_TypeDef | mode | ||
) |
Disable/enable reset for various peripherals and signal sources.
[in] | reset | Reset types to enable/disable |
[in] | mode | Reset mode |
Definition at line 222 of file em_rmu.c.
References BUS_RegBitWrite(), RMU, and SL_CTZ().
__STATIC_INLINE uint32_t RMU_UserResetStateGet | ( | void | ) |
Get user reset state. This state is reset only by a Power-on-reset and a pin reset.
Definition at line 134 of file em_rmu.h.
References _RMU_CTRL_RESETSTATE_MASK, _RMU_CTRL_RESETSTATE_SHIFT, and RMU.
__STATIC_INLINE void RMU_UserResetStateSet | ( | uint32_t | userState | ) |
Set user reset state. This state is reset only by a Power-on-reset and a pin reset.
[in] | userState | User state to set |
Definition at line 118 of file em_rmu.h.
References _RMU_CTRL_RESETSTATE_MASK, _RMU_CTRL_RESETSTATE_SHIFT, and RMU.