RMU - Reset Management Unit#

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.

Enumerations#

enum
RMU_ResetMode_TypeDef {
rmuResetModeDisabled = 0
rmuResetModeEnabled = 1
}

RMU reset modes.

enum
RMU_Reset_TypeDef {
rmuResetWdog0 = _EMU_RSTCTRL_WDOG0RMODE_MASK
rmuResetWdog1 = _EMU_RSTCTRL_WDOG1RMODE_MASK
rmuResetSys = _EMU_RSTCTRL_SYSRMODE_MASK
rmuResetCoreLockup = _EMU_RSTCTRL_LOCKUPRMODE_MASK
rmuResetAVDD = _EMU_RSTCTRL_AVDDBODRMODE_MASK
rmuResetIOVDD0 = _EMU_RSTCTRL_IOVDD0BODRMODE_MASK
rmuResetDecouple = _EMU_RSTCTRL_DECBODRMODE_MASK
rmuResetSESys = _EMU_RSTCTRL_SESYSRMODE_MASK
rmuResetSELockup = _EMU_RSTCTRL_SELOCKUPRMODE_MASK
}

RMU controlled peripheral reset control and reset source control.

Functions#

void
RMU_ResetControl(RMU_Reset_TypeDef reset, RMU_ResetMode_TypeDef mode)

Disable/enable reset for various peripherals and signal sources.

void
RMU_ResetCauseClear(void)

Clear the reset cause register.

uint32_t
RMU_ResetCauseGet(void)

Get the cause of the last reset.

Macros#

#define
RMU_LockupResetDisable (A)

RMU_LockupResetDisable kept for backwards compatibility.

Enumeration Documentation#

RMU_ResetMode_TypeDef#

RMU_ResetMode_TypeDef

RMU reset modes.

Enumerator
rmuResetModeDisabled

Reset mode disabled.

rmuResetModeEnabled

Reset mode enabled.


Definition at line 54 of file platform/emlib/inc/em_rmu.h

RMU_Reset_TypeDef#

RMU_Reset_TypeDef

RMU controlled peripheral reset control and reset source control.

Enumerator
rmuResetWdog0

WDOG0 reset select.

rmuResetWdog1

WDOG1 reset select.

rmuResetSys

SYSRESET select.

rmuResetCoreLockup

Cortex lockup reset select.

rmuResetAVDD

AVDD monitoring select.

rmuResetIOVDD0

IOVDD0 monitoring select.

rmuResetDecouple

Decouple monitoring select.

rmuResetSESys

M0+ (SE) system reset select.

rmuResetSELockup

M0+ (SE) lockup select.


Definition at line 70 of file platform/emlib/inc/em_rmu.h

Function Documentation#

RMU_ResetControl#

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 244 of file platform/emlib/src/em_rmu.c

RMU_ResetCauseClear#

void RMU_ResetCauseClear (void )

Clear the reset cause register.

Parameters
N/A

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 276 of file platform/emlib/src/em_rmu.c

RMU_ResetCauseGet#

uint32_t RMU_ResetCauseGet (void )

Get the cause of the last reset.

Parameters
N/A

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 319 of file platform/emlib/src/em_rmu.c

Macro Definition Documentation#

RMU_LockupResetDisable#

#define RMU_LockupResetDisable
Value:
(A)

RMU_LockupResetDisable kept for backwards compatibility.


Definition at line 135 of file platform/emlib/inc/em_rmu.h