RTCC

Detailed Description

Real Time Counter (RTCC) Peripheral API.

This module contains functions to control the RTCC peripheral of Silicon Labs 32-bit MCUs and SoCs. The RTCC ensures timekeeping in low energy modes. The RTCC also includes a BCD calendar mode for easy time and date keeping.

Data Structures
struct	RTCC_CCChConf_TypeDef
struct	RTCC_Init_TypeDef

Macros
#define	RTCC_CH_INIT_CAPTURE_DEFAULT
#define	RTCC_CH_INIT_COMPARE_DEFAULT
#define	RTCC_CH_VALID(ch)    ( ( ch ) < 3 )
#define	RTCC_INIT_DEFAULT

Enumerations
enum	RTCC_CapComChMode_TypeDef {   rtccCapComChModeOff = _RTCC_CC_CTRL_MODE_OFF,   rtccCapComChModeCapture = _RTCC_CC_CTRL_MODE_INPUTCAPTURE,   rtccCapComChModeCompare = _RTCC_CC_CTRL_MODE_OUTPUTCOMPARE }
enum	RTCC_CntMode_TypeDef {   rtccCntModeNormal = _RTCC_CTRL_CNTTICK_PRESC,   rtccCntModeCalendar = _RTCC_CTRL_CNTTICK_CCV0MATCH }
enum	RTCC_CntPresc_TypeDef {   rtccCntPresc_1 = _RTCC_CTRL_CNTPRESC_DIV1,   rtccCntPresc_2 = _RTCC_CTRL_CNTPRESC_DIV2,   rtccCntPresc_4 = _RTCC_CTRL_CNTPRESC_DIV4,   rtccCntPresc_8 = _RTCC_CTRL_CNTPRESC_DIV8,   rtccCntPresc_16 = _RTCC_CTRL_CNTPRESC_DIV16,   rtccCntPresc_32 = _RTCC_CTRL_CNTPRESC_DIV32,   rtccCntPresc_64 = _RTCC_CTRL_CNTPRESC_DIV64,   rtccCntPresc_128 = _RTCC_CTRL_CNTPRESC_DIV128,   rtccCntPresc_256 = _RTCC_CTRL_CNTPRESC_DIV256,   rtccCntPresc_512 = _RTCC_CTRL_CNTPRESC_DIV512,   rtccCntPresc_1024 = _RTCC_CTRL_CNTPRESC_DIV1024,   rtccCntPresc_2048 = _RTCC_CTRL_CNTPRESC_DIV2048,   rtccCntPresc_4096 = _RTCC_CTRL_CNTPRESC_DIV4096,   rtccCntPresc_8192 = _RTCC_CTRL_CNTPRESC_DIV8192,   rtccCntPresc_16384 = _RTCC_CTRL_CNTPRESC_DIV16384,   rtccCntPresc_32768 = _RTCC_CTRL_CNTPRESC_DIV32768 }
enum	RTCC_CompBase_TypeDef {   rtccCompBaseCnt = _RTCC_CC_CTRL_COMPBASE_CNT,   rtccCompBasePreCnt = _RTCC_CC_CTRL_COMPBASE_PRECNT }
enum	RTCC_CompMatchOutAction_TypeDef {   rtccCompMatchOutActionPulse = _RTCC_CC_CTRL_CMOA_PULSE,   rtccCompMatchOutActionToggle = _RTCC_CC_CTRL_CMOA_TOGGLE,   rtccCompMatchOutActionClear = _RTCC_CC_CTRL_CMOA_CLEAR,   rtccCompMatchOutActionSet = _RTCC_CC_CTRL_CMOA_SET }
enum	RTCC_DayCompareMode_TypeDef {   rtccDayCompareModeMonth = _RTCC_CC_CTRL_DAYCC_MONTH,   rtccDayCompareModeWeek = _RTCC_CC_CTRL_DAYCC_WEEK }
enum	RTCC_InEdgeSel_TypeDef {   rtccInEdgeRising = _RTCC_CC_CTRL_ICEDGE_RISING,   rtccInEdgeFalling = _RTCC_CC_CTRL_ICEDGE_FALLING,   rtccInEdgeBoth = _RTCC_CC_CTRL_ICEDGE_BOTH,   rtccInEdgeNone = _RTCC_CC_CTRL_ICEDGE_NONE }
enum	RTCC_PrescMode_TypeDef {   rtccCntTickPresc = _RTCC_CTRL_CNTTICK_PRESC,   rtccCntTickCCV0Match = _RTCC_CTRL_CNTTICK_CCV0MATCH }
enum	RTCC_PRSSel_TypeDef {   rtccPRSCh0 = _RTCC_CC_CTRL_PRSSEL_PRSCH0,   rtccPRSCh1 = _RTCC_CC_CTRL_PRSSEL_PRSCH1,   rtccPRSCh2 = _RTCC_CC_CTRL_PRSSEL_PRSCH2,   rtccPRSCh3 = _RTCC_CC_CTRL_PRSSEL_PRSCH3,   rtccPRSCh4 = _RTCC_CC_CTRL_PRSSEL_PRSCH4,   rtccPRSCh5 = _RTCC_CC_CTRL_PRSSEL_PRSCH5,   rtccPRSCh6 = _RTCC_CC_CTRL_PRSSEL_PRSCH6,   rtccPRSCh7 = _RTCC_CC_CTRL_PRSSEL_PRSCH7,   rtccPRSCh8 = _RTCC_CC_CTRL_PRSSEL_PRSCH8,   rtccPRSCh9 = _RTCC_CC_CTRL_PRSSEL_PRSCH9,   rtccPRSCh10 = _RTCC_CC_CTRL_PRSSEL_PRSCH10,   rtccPRSCh11 = _RTCC_CC_CTRL_PRSSEL_PRSCH11 }

Functions
__STATIC_INLINE uint32_t	RTCC_ChannelCCVGet (int ch)
	Get RTCC capture/compare register value (CCV) for selected channel. More...
__STATIC_INLINE void	RTCC_ChannelCCVSet (int ch, uint32_t value)
	Set RTCC capture/compare register value (CCV) for selected channel. More...
__STATIC_INLINE uint32_t	RTCC_ChannelDateGet (int ch)
	Get the calendar DATE register content for selected channel. More...
__STATIC_INLINE void	RTCC_ChannelDateSet (int ch, uint32_t date)
	Set the calendar DATE register for selected channel. More...
void	RTCC_ChannelInit (int ch, RTCC_CCChConf_TypeDef const *confPtr)
	Configure the selected capture/compare channel of the RTCC. More...
__STATIC_INLINE uint32_t	RTCC_ChannelTimeGet (int ch)
	Get the calendar TIME register content for selected channel. More...
__STATIC_INLINE void	RTCC_ChannelTimeSet (int ch, uint32_t time)
	Set the calendar TIME register for selected channel. More...
__STATIC_INLINE uint32_t	RTCC_CombinedCounterGet (void)
	Get the combined CNT/PRECNT register content. More...
__STATIC_INLINE uint32_t	RTCC_CounterGet (void)
	Get RTCC counter value. More...
__STATIC_INLINE void	RTCC_CounterSet (uint32_t value)
	Set RTCC CNT counter. More...
__STATIC_INLINE uint32_t	RTCC_DateGet (void)
	Get DATE register value. More...
__STATIC_INLINE void	RTCC_DateSet (uint32_t date)
	Set RTCC DATE register. More...
__STATIC_INLINE void	RTCC_EM4WakeupEnable (bool enable)
	Enable/disable EM4 wakeup capability. More...
void	RTCC_Enable (bool enable)
	Enable/disable RTCC. More...
void	RTCC_Init (const RTCC_Init_TypeDef *init)
	Initialize RTCC. More...
__STATIC_INLINE void	RTCC_IntClear (uint32_t flags)
	Clear one or more pending RTCC interrupts. More...
__STATIC_INLINE void	RTCC_IntDisable (uint32_t flags)
	Disable one or more RTCC interrupts. More...
__STATIC_INLINE void	RTCC_IntEnable (uint32_t flags)
	Enable one or more RTCC interrupts. More...
__STATIC_INLINE uint32_t	RTCC_IntGet (void)
	Get pending RTCC interrupt flags. More...
__STATIC_INLINE uint32_t	RTCC_IntGetEnabled (void)
	Get enabled and pending RTCC interrupt flags. More...
__STATIC_INLINE void	RTCC_IntSet (uint32_t flags)
	Set one or more pending RTCC interrupts from SW. More...
__STATIC_INLINE void	RTCC_Lock (void)
	Lock RTCC registers. More...
__STATIC_INLINE uint32_t	RTCC_PreCounterGet (void)
	Get RTCC pre-counter value. More...
__STATIC_INLINE void	RTCC_PreCounterSet (uint32_t preCntVal)
	Set RTCC pre-counter value. More...
void	RTCC_Reset (void)
	Restore RTCC to its reset state.
__STATIC_INLINE void	RTCC_RetentionRamPowerDown (void)
	Power down the retention ram. More...
void	RTCC_StatusClear (void)
	Clear STATUS register.
__STATIC_INLINE uint32_t	RTCC_StatusGet (void)
	Get STATUS register value. More...
__STATIC_INLINE uint32_t	RTCC_TimeGet (void)
	Get TIME register value. More...
__STATIC_INLINE void	RTCC_TimeSet (uint32_t time)
	Set RTCC TIME register. More...
__STATIC_INLINE void	RTCC_Unlock (void)
	Unlock RTCC registers. More...

Macro Definition Documentation

#define RTCC_CH_INIT_CAPTURE_DEFAULT

Value:

{                                                                           \
  rtccCapComChModeCapture,     /* Select input capture mode.      */        \
  rtccCompMatchOutActionPulse, /* Create pulse on capture.        */        \
  rtccPRSCh0,                  /* PRS channel 0.                  */        \
  rtccInEdgeRising,            /* Rising edge detection.          */        \
  rtccCompBaseCnt,             /* Don't care.                     */        \
  0,                           /* Don't care.                     */        \
  rtccDayCompareModeMonth      /* Don't care                      */        \
}

Default RTCC channel input capture init structure.

Definition at line 302 of file em_rtcc.h.

#define RTCC_CH_INIT_COMPARE_DEFAULT

Value:

{                                                                           \
  rtccCapComChModeCompare,     /* Select output compare mode.     */        \
  rtccCompMatchOutActionPulse, /* Create pulse on compare match.  */        \
  rtccPRSCh0,                  /* PRS channel 0 (not used).       */        \
  rtccInEdgeNone,              /* No edge detection.              */        \
  rtccCompBaseCnt,             /* Counter comparison base.        */        \
  0,                           /* No compare mask bits set.       */        \
  rtccDayCompareModeMonth      /* Don't care */                             \
}

Default RTCC channel output compare init structure.

Definition at line 290 of file em_rtcc.h.

#define RTCC_CH_VALID

(

ch

)

( ( ch ) < 3 )

Validation of valid RTCC channel for assert statements.

Definition at line 314 of file em_rtcc.h.

Referenced by RTCC_ChannelCCVGet(), RTCC_ChannelCCVSet(), RTCC_ChannelDateGet(), RTCC_ChannelDateSet(), RTCC_ChannelInit(), RTCC_ChannelTimeGet(), and RTCC_ChannelTimeSet().

#define RTCC_INIT_DEFAULT

Value:

{                                                                           \
  true,     /* Start counting when init done.                           */  \
  false,    /* Disable RTCC during debug halt.                          */  \
  false,    /* Disable precounter wrap on ch. 0 CCV value.              */  \
  false,    /* Disable counter wrap on ch. 1 CCV value.                 */  \
  rtccCntPresc_32, /* 977 us per tick.                                  */  \
  rtccCntTickPresc, /* Counter increments according to prescaler value. */  \
  false,    /* No RTCC oscillator failure detection.                    */  \
  rtccCntModeNormal, /* Normal RTCC mode.                               */  \
  false,    /* No leap year correction.                                 */  \
}

Default RTCC init structure.

Definition at line 275 of file em_rtcc.h.

Referenced by UDELAY_Calibrate().

Enumeration Type Documentation

enum RTCC_CapComChMode_TypeDef

Capture/Compare channel mode.

Enumerator
rtccCapComChModeOff	Capture/Compare channel turned off.
rtccCapComChModeCapture	Capture mode.
rtccCapComChModeCompare	Compare mode.

Definition at line 121 of file em_rtcc.h.

enum RTCC_CntMode_TypeDef

Operational mode of the counter.

Enumerator
rtccCntModeNormal	Normal counter mode. The counter is incremented by 1 for each tick.
rtccCntModeCalendar	Calendar mode. Refer to the RTCC chapter of the Reference Manual for more details on the calendar mode.

Definition at line 76 of file em_rtcc.h.

enum RTCC_CntPresc_TypeDef

Counter prescaler selection.

Enumerator
rtccCntPresc_1	Divide clock by 1.
rtccCntPresc_2	Divide clock by 2.
rtccCntPresc_4	Divide clock by 4.
rtccCntPresc_8	Divide clock by 8.
rtccCntPresc_16	Divide clock by 16.
rtccCntPresc_32	Divide clock by 32.
rtccCntPresc_64	Divide clock by 64.
rtccCntPresc_128	Divide clock by 128.
rtccCntPresc_256	Divide clock by 256.
rtccCntPresc_512	Divide clock by 512.
rtccCntPresc_1024	Divide clock by 1024.
rtccCntPresc_2048	Divide clock by 2048.
rtccCntPresc_4096	Divide clock by 4096.
rtccCntPresc_8192	Divide clock by 8192.
rtccCntPresc_16384	Divide clock by 16384.
rtccCntPresc_32768	Divide clock by 32768.

Definition at line 87 of file em_rtcc.h.

enum RTCC_CompBase_TypeDef

Capture/Compare channel compare mode.

Enumerator
rtccCompBaseCnt	CCVx is compared with the CNT register.
rtccCompBasePreCnt	CCVx is compared with a CNT[16:0] and PRECNT[14:0].

Definition at line 167 of file em_rtcc.h.

enum RTCC_CompMatchOutAction_TypeDef

Compare match output action mode.

Enumerator
rtccCompMatchOutActionPulse	Generate a pulse.
rtccCompMatchOutActionToggle	Toggle output.
rtccCompMatchOutActionClear	Clear output.
rtccCompMatchOutActionSet	Set output.

Definition at line 129 of file em_rtcc.h.

enum RTCC_DayCompareMode_TypeDef

Day compare mode.

Enumerator
rtccDayCompareModeMonth	Day of month is selected for Capture/Compare.
rtccDayCompareModeWeek	Day of week is selected for Capture/Compare.

Definition at line 177 of file em_rtcc.h.

enum RTCC_InEdgeSel_TypeDef

Input edge select.

Enumerator
rtccInEdgeRising	Rising edges detected.
rtccInEdgeFalling	Falling edges detected.
rtccInEdgeBoth	Both edges detected.
rtccInEdgeNone	No edge detection, signal is left as is.

Definition at line 157 of file em_rtcc.h.

enum RTCC_PrescMode_TypeDef

Prescaler mode of the RTCC counter.

Enumerator
rtccCntTickPresc	CNT register ticks according to the prescaler value.
rtccCntTickCCV0Match	CNT register ticks when PRECNT matches the 15 least significant bits of ch. 0 CCV register.

Definition at line 109 of file em_rtcc.h.

enum RTCC_PRSSel_TypeDef

PRS input sources.

Enumerator
rtccPRSCh0	PRS channel 0.
rtccPRSCh1	PRS channel 1.
rtccPRSCh2	PRS channel 2.
rtccPRSCh3	PRS channel 3.
rtccPRSCh4	PRS channel 4.
rtccPRSCh5	PRS channel 5.
rtccPRSCh6	PRS channel 6.
rtccPRSCh7	PRS channel 7.
rtccPRSCh8	PRS channel 8.
rtccPRSCh9	PRS channel 9.
rtccPRSCh10	PRS channel 10.
rtccPRSCh11	PRS channel 11.

Definition at line 139 of file em_rtcc.h.

Function Documentation

__STATIC_INLINE uint32_t RTCC_ChannelCCVGet

(

int

ch

)

Get RTCC capture/compare register value (CCV) for selected channel.

Parameters

[in]

ch

Channel selector.

Returns

Capture/compare register value.

Definition at line 330 of file em_rtcc.h.

References RTCC, and RTCC_CH_VALID.

__STATIC_INLINE void RTCC_ChannelCCVSet	(	int	ch,
		uint32_t	value
	)

Set RTCC capture/compare register value (CCV) for selected channel.

Parameters

[in]	ch	Channel selector.
[in]	value	CCV value.

Definition at line 346 of file em_rtcc.h.

References RTCC, and RTCC_CH_VALID.

__STATIC_INLINE uint32_t RTCC_ChannelDateGet

(

int

ch

)

Get the calendar DATE register content for selected channel.

Parameters

[in]

ch

Channel selector.

Returns

DATE register value.

Definition at line 362 of file em_rtcc.h.

References RTCC, and RTCC_CH_VALID.

__STATIC_INLINE void RTCC_ChannelDateSet	(	int	ch,
		uint32_t	date
	)

Set the calendar DATE register for selected channel.

Parameters

[in]	ch	Channel selector.
[in]	date	DATE value.

Definition at line 378 of file em_rtcc.h.

References RTCC, and RTCC_CH_VALID.

void RTCC_ChannelInit	(	int	ch,
		RTCC_CCChConf_TypeDef const *	confPtr
	)

Configure the selected capture/compare channel of the RTCC.

Use this function to configure a RTCC channel. Select capture/compare mode, match output action, overflow output action and PRS input configuration. Refer to the configuration structure RTCC_CCChConf_TypeDef for more details.

Parameters

[in]	ch	Channel selector.
[in]	confPtr	Pointer to configuration structure.

Configure the selected capture/compare channel.

Definition at line 81 of file em_rtcc.c.

References _RTCC_CC_CTRL_CMOA_SHIFT, _RTCC_CC_CTRL_COMPBASE_SHIFT, _RTCC_CC_CTRL_COMPMASK_MASK, _RTCC_CC_CTRL_COMPMASK_SHIFT, _RTCC_CC_CTRL_DAYCC_SHIFT, _RTCC_CC_CTRL_ICEDGE_SHIFT, _RTCC_CC_CTRL_MODE_SHIFT, _RTCC_CC_CTRL_PRSSEL_SHIFT, RTCC_CCChConf_TypeDef::chMode, RTCC_CCChConf_TypeDef::compBase, RTCC_CCChConf_TypeDef::compMask, RTCC_CCChConf_TypeDef::compMatchOutAction, RTCC_CCChConf_TypeDef::dayCompMode, RTCC_CCChConf_TypeDef::inputEdgeSel, RTCC_CCChConf_TypeDef::prsSel, RTCC, and RTCC_CH_VALID.

Referenced by RTCDRV_Init().

__STATIC_INLINE uint32_t RTCC_ChannelTimeGet

(

int

ch

)

Get the calendar TIME register content for selected channel.

Parameters

[in]

ch

Channel selector.

Returns

TIME register value.

Definition at line 396 of file em_rtcc.h.

References RTCC, and RTCC_CH_VALID.

__STATIC_INLINE void RTCC_ChannelTimeSet	(	int	ch,
		uint32_t	time
	)

Set the calendar TIME register for selected channel.

Parameters

[in]	ch	Channel selector.
[in]	time	TIME value.

Definition at line 412 of file em_rtcc.h.

References RTCC, and RTCC_CH_VALID.

__STATIC_INLINE uint32_t RTCC_CombinedCounterGet

(

void

)

Get the combined CNT/PRECNT register content.

Returns

CNT/PRECNT register value.

Definition at line 425 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE uint32_t RTCC_CounterGet

(

void

)

Get RTCC counter value.

Returns

Current RTCC counter value.

Definition at line 437 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE void RTCC_CounterSet

(

uint32_t

value

)

Set RTCC CNT counter.

Parameters

[in]

value

CNT value.

Definition at line 449 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE uint32_t RTCC_DateGet

(

void

)

Get DATE register value.

Returns

Current DATE register value.

Definition at line 461 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE void RTCC_DateSet

(

uint32_t

date

)

Set RTCC DATE register.

Parameters

[in]

date

DATE value.

Definition at line 473 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE void RTCC_EM4WakeupEnable

(

bool

enable

)

Enable/disable EM4 wakeup capability.

Parameters

[in]

enable

True to enable EM4 wakeup, false to disable.

Definition at line 485 of file em_rtcc.h.

References RTCC, and RTCC_EM4WUEN_EM4WU.

void RTCC_Enable

(

bool

enable

)

Enable/disable RTCC.

Parameters

[in]

enable

True to enable RTCC, false to disable.

Definition at line 105 of file em_rtcc.c.

References _RTCC_CTRL_ENABLE_SHIFT, BUS_RegBitWrite(), and RTCC.

Referenced by RTCDRV_DeInit(), and UDELAY_Calibrate().

void RTCC_Init

(

const RTCC_Init_TypeDef *

init

)

Initialize RTCC.

Note that the compare values must be set separately with RTCC_CompareSet(). That should probably be done prior to the use of this function if configuring the RTCC to start when initialization is completed.

Parameters

[in]

init

Pointer to RTCC initialization structure.

Definition at line 123 of file em_rtcc.c.

References _RTCC_CTRL_CCV1TOP_SHIFT, _RTCC_CTRL_CNTMODE_SHIFT, _RTCC_CTRL_CNTPRESC_SHIFT, _RTCC_CTRL_CNTTICK_SHIFT, _RTCC_CTRL_DEBUGRUN_SHIFT, _RTCC_CTRL_ENABLE_SHIFT, _RTCC_CTRL_LYEARCORRDIS_SHIFT, _RTCC_CTRL_OSCFDETEN_SHIFT, _RTCC_CTRL_PRECCV0TOP_SHIFT, RTCC_Init_TypeDef::cntMode, RTCC_Init_TypeDef::cntWrapOnCCV1, RTCC_Init_TypeDef::debugRun, RTCC_Init_TypeDef::disLeapYearCorr, RTCC_Init_TypeDef::enable, RTCC_Init_TypeDef::enaOSCFailDetect, RTCC_Init_TypeDef::precntWrapOnCCV0, RTCC_Init_TypeDef::presc, RTCC_Init_TypeDef::prescMode, and RTCC.

Referenced by RTCDRV_Init(), and UDELAY_Calibrate().

__STATIC_INLINE void RTCC_IntClear

(

uint32_t

flags

)

Clear one or more pending RTCC interrupts.

Parameters

[in]

flags

RTCC interrupt sources to clear. Use a set of interrupt flags OR-ed together to clear multiple interrupt sources.

Definition at line 509 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE void RTCC_IntDisable

(

uint32_t

flags

)

Disable one or more RTCC interrupts.

Parameters

[in]

flags

RTCC interrupt sources to disable. Use a set of interrupt flags OR-ed together to disable multiple interrupt.

Definition at line 522 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE void RTCC_IntEnable

(

uint32_t

flags

)

Enable one or more RTCC interrupts.

Note

Depending on the use, a pending interrupt may already be set prior to enabling the interrupt. Consider using RTCC_IntClear() prior to enabling if such a pending interrupt should be ignored.

Parameters

[in]

flags

RTCC interrupt sources to enable. Use a set of interrupt flags OR-ed together to set multiple interrupt.

Definition at line 540 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE uint32_t RTCC_IntGet

(

void

)

Get pending RTCC interrupt flags.

Note

The event bits are not cleared by the use of this function.

Returns

Pending RTCC interrupt sources. Returns a set of interrupt flags OR-ed together for the interrupt sources set.

Definition at line 556 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE uint32_t RTCC_IntGetEnabled

(

void

)

Get enabled and pending RTCC interrupt flags.

Useful for handling more interrupt sources in the same interrupt handler.

Returns

Pending and enabled RTCC interrupt sources. Returns a set of interrupt flags OR-ed together for the interrupt sources set.

Definition at line 572 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE void RTCC_IntSet

(

uint32_t

flags

)

Set one or more pending RTCC interrupts from SW.

Parameters

[in]

flags

RTCC interrupt sources to set to pending. Use a set of interrupt flags (RTCC_IFS_nnn).

Definition at line 590 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE void RTCC_Lock

(

void

)

Lock RTCC registers.

Note

When RTCC registers are locked, RTCC_CTRL, RTCC_PRECNT, RTCC_CNT, RTCC_TIME, RTCC_DATE, RTCC_IEN, RTCC_POWERDOWN and RTCC_CCx_XXX registers can not be written to.

Definition at line 604 of file em_rtcc.h.

References CMU, CMU_LOCK_LOCKKEY_LOCK, CMU_LOCK_LOCKKEY_LOCKED, CMU_LOCK_LOCKKEY_UNLOCK, RTCC, and RTCC_LOCK_LOCKKEY_LOCK.

__STATIC_INLINE uint32_t RTCC_PreCounterGet

(

void

)

Get RTCC pre-counter value.

Returns

Current RTCC pre-counter value.

Definition at line 635 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE void RTCC_PreCounterSet

(

uint32_t

preCntVal

)

Set RTCC pre-counter value.

Parameters

[in]

preCntVal

RTCC pre-counter value to be set.

Definition at line 647 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE void RTCC_RetentionRamPowerDown

(

void

)

Power down the retention ram.

Note

Once retention ram is powered down, it cannot be powered up again.

Definition at line 661 of file em_rtcc.h.

References RTCC, and RTCC_POWERDOWN_RAM.

__STATIC_INLINE uint32_t RTCC_StatusGet

(

void

)

Get STATUS register value.

Returns

Current STATUS register value.

Definition at line 679 of file em_rtcc.h.

References RTCC, and RTCC_SYNCBUSY_CMD.

__STATIC_INLINE uint32_t RTCC_TimeGet

(

void

)

Get TIME register value.

Returns

Current TIME register value.

Definition at line 695 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE void RTCC_TimeSet

(

uint32_t

time

)

Set RTCC TIME register.

Parameters

[in]

time

TIME value.

Definition at line 707 of file em_rtcc.h.

References RTCC.

__STATIC_INLINE void RTCC_Unlock

(

void

)

Unlock RTCC registers.

Note

When RTCC registers are locked, RTCC_CTRL, RTCC_PRECNT, RTCC_CNT, RTCC_TIME, RTCC_DATE, RTCC_IEN, RTCC_POWERDOWN and RTCC_CCx_XXX registers can not be written to.

Definition at line 721 of file em_rtcc.h.

References CMU, CMU_LOCK_LOCKKEY_LOCK, CMU_LOCK_LOCKKEY_LOCKED, CMU_LOCK_LOCKKEY_UNLOCK, RTCC, and RTCC_LOCK_LOCKKEY_UNLOCK.

Referenced by RTCC_Reset().