RMU
EMLIB

Detailed Description

Reset Management Unit (RMU) Peripheral API.

This module contains functions to control the RMU peripheral of Silicon Labs 32-bit MCUs and SoCs. RMU ensures correct reset operation and 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_LOCKUPRDIS_MASK }
enum RMU_ResetMode_TypeDef {
rmuResetModeClear = 0,
rmuResetModeSet = 1
}

Functions

void RMU_ResetCauseClear (void)
Clear the reset cause register.
uint32_t RMU_ResetCauseGet (void)
Get the cause of the last reset.
void RMU_ResetControl ( RMU_Reset_TypeDef reset, RMU_ResetMode_TypeDef mode)
Disable/enable reset for various peripherals and signal sources.

Macro Definition Documentation

#define RMU_LockupResetDisable ( A ) RMU_ResetControl ( rmuResetLockUp , A)

RMU_LockupResetDisable kept for backwards compatibility.

Definition at line 131 of file em_rmu.h .

Enumeration Type Documentation

enum RMU_Reset_TypeDef

RMU controlled peripheral reset control and reset source control.

Enumerator
rmuResetLockUp

Cortex lockup reset select.

Definition at line 75 of file em_rmu.h .

enum RMU_ResetMode_TypeDef

RMU reset modes.

Definition at line 59 of file em_rmu.h .

Function Documentation

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 software before a new reset occurs. Otherwise, reset causes may accumulate. See RMU_ResetCauseGet() .

Definition at line 273 of file em_rmu.c .

References BUS_RegBitWrite() , EMU_Lock() , and EMU_Unlock() .

Referenced by SLEEP_Init() .

uint32_t RMU_ResetCauseGet ( void )

Get the cause of the last reset.

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".

Returns
A reset cause mask. See the reference manual for a description of the reset cause mask.

Definition at line 316 of file em_rmu.c .

Referenced by SLEEP_Init() .

void RMU_ResetControl ( RMU_Reset_TypeDef reset,
RMU_ResetMode_TypeDef mode
)

Disable/enable reset for various peripherals and signal sources.

Parameters
[in] reset Reset types to enable/disable.s
[in] mode Reset mode.

Definition at line 245 of file em_rmu.c .

References BUS_RegBitWrite() , and SL_CTZ() .