RTC_INIT (INIT)

RTC_CAL (CAL)

RTC_CLKFMT (CLKFMT)

RTC_WEEKDAY (WEEKDAY)

RTC_TALM (TALM)

RTC_CALM (CALM)

RTC_LEAPYEAR (LEAPYEAR)

RTC_INTEN (INTEN)

RTC_INTSTS (INTSTS)

RTC_TICK (TICK)

RTC_POWCTL (POWCTL)

RTC_SET (SET)

RTC_CLKSRC (CLKSRC)

RTC_RWEN (RWEN)

RTC_CALCNT (CALCNT)

RTC_SYNC (SYNC)

RTC_SPR0 (SPR0)

RTC_SPR1 (SPR1)

RTC_SPR2 (SPR2)

RTC_SPR3 (SPR3)

RTC_SPR4 (SPR4)

RTC_SPR5 (SPR5)

RTC_SPR6 (SPR6)

RTC_SPR7 (SPR7)

RTC_FREQADJ (FREQADJ)

RTC_TIME (TIME)

ACTIVE : RTC Active Status (Read Only)\n
bits : 0 - 0 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

INIT_STS : RTC Initiation (While Writing) When RTC block is powered on, RTC is at reset state. User has to write a number (0x a5eb1357) to INIT to make RTC exit from reset state. Once the INIT is written as 0xa5eb1357, the RTC will be in un-reset state permanently. The INIT is a write-only field and read value will be always 0 . RTC Internal Status (While Reading) [31:8]: INIT[31:8] [7:5]: RTC internal state machine of key detection [4]: Status of power key, 0:pressed and 1:released [3]: Status of power off request pwr_key_off [2]: Level shifter reset [1]: Level shifter enable
bits : 1 - 31 (31 bit)
access : read-write

DAY : 1-Day Calendar Digit
bits : 0 - 3 (4 bit)
access : read-write

TENDAY : 10-Day Calendar Digit
bits : 4 - 5 (2 bit)
access : read-write

MON : 1-Month Calendar Digit
bits : 8 - 11 (4 bit)
access : read-write

TENMON : 10-Month Calendar Digit
bits : 12 - 12 (1 bit)
access : read-write

YEAR : 1-Year Calendar Digit
bits : 16 - 19 (4 bit)
access : read-write

TENYEAR : 10-Year Calendar Digit
bits : 20 - 23 (4 bit)
access : read-write

_24HEN : 24-hour / 12-hour Mode Selection\nIndicate that RTC_TIME and RTC_TALM are in 24-hour mode or 12-hour mode.\n
bits : 0 - 0 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

WEEKDAY : Day of the Week Register \n
bits : 0 - 2 (3 bit)
access : read-write

Enumeration:

End of enumeration elements list.

SEC : 1-Sec Time Digit of Alarm Setting (0-9)
bits : 0 - 3 (4 bit)
access : read-write

TENSEC : 10-Sec Time Digit of Alarm Setting (0-5)
bits : 4 - 6 (3 bit)
access : read-write

MSKSEC : Mask Alarm by Second\n
bits : 7 - 7 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

MIN : 1-Min Time Digit of Alarm Setting (0-9)
bits : 8 - 11 (4 bit)
access : read-write

TENMIN : 10-Min Time Digit of Alarm Setting (0-5)
bits : 12 - 14 (3 bit)
access : read-write

MSKMIN : Mask Alarm by Minute\n
bits : 15 - 15 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

HR : 1-Hour Time Digit of Alarm Setting (0-9)
bits : 16 - 19 (4 bit)
access : read-write

TENHR : 10-hour Time Digit of Alarm Setting (0-2)\nWhen RTC runs as 12-hour time scale mode, RTC_TIME[21] (the high bit of TENHR[1:0]) means AM/PM indication. (If RTC_TIME[21] is 1, it indicates PM time message.)
bits : 20 - 21 (2 bit)
access : read-write

MSKHR : Mask Alarm by Hour\n
bits : 23 - 23 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

DAY : 1-Day Calendar Digit of Alarm Setting (0-9)
bits : 0 - 3 (4 bit)
access : read-write

TENDAY : 10-Day Calendar Digit of Alarm Setting (0-3)
bits : 4 - 5 (2 bit)
access : read-write

MSKDAY : Mask Alarm by Day\n
bits : 7 - 7 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

MON : 1-Month Calendar Digit of Alarm Setting (0-9)
bits : 8 - 11 (4 bit)
access : read-write

TENMON : 10-Month Calendar Digit of Alarm Setting (0-1)
bits : 12 - 12 (1 bit)
access : read-write

MSKMON : Mask Alarm by Month\n
bits : 15 - 15 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

YEAR : 1-Year Calendar Digit of Alarm Setting (0-9)
bits : 16 - 19 (4 bit)
access : read-write

TENYEAR : 10-Year Calendar Digit of Alarm Setting (0-9)
bits : 20 - 23 (4 bit)
access : read-write

MSKYEAR : Mask Alarm by Year\n
bits : 24 - 24 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

WEEKDAY : Week Day Alarm Digit
bits : 28 - 30 (3 bit)
access : read-write

MSKWEEKDAY : Mask Alarm by Week Day\n
bits : 31 - 31 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

LEAPYEAR : Leap Year Indication Register (Read Only)\n
bits : 0 - 0 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

ALMIEN : Alarm Interrupt Enable Control\n
bits : 0 - 0 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

TICKIEN : Time Tick Interrupt Enable Control\n
bits : 1 - 1 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

PKEYIEN : Power Switch Interrupt Enable Control\n
bits : 2 - 2 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

RALMIEN : Relative Alarm Interrupt Enable Control\n
bits : 3 - 3 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

ALMIF : RTC Alarm Interrupt Flag\nWhen RTC time counters RTC_TIME and RTC_CAL match the alarm setting time registers RTC_TALM and RTC_CALM, this bit will be set to 1 and an interrupt will be generated if RTC Alarm Interrupt enabled ALMIEN (RTC_INTEN[0]) is set to 1. Chip will be woken up if RTC Alarm Interrupt is enabled when chip is at Power-down mode.\nNote: Write 1 to clear this bit.
bits : 0 - 0 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

TICKIF : RTC Time Tick Interrupt Flag\nWhen RTC time tick happened, this bit will be set to 1 and an interrupt will be generated if RTC Tick Interrupt enabled TICKIEN (RTC_INTEN[1]) is set to 1. Chip will also be woken up if RTC Tick Interrupt is enabled and this bit is set to 1 when chip is running at Power-down mode.\nNote: Write 1 to clear to clear this bit.
bits : 1 - 1 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

POWKEYIF : Power Switch Interrupt Flag\nWhen RTC detect power key (RTC_nRWAKE) is pressed , the POWKEYIF (RTC_INTSYS[2]) is set to 1\nNote: Software can also clear this bit after RTC interrupt has occurred
bits : 2 - 2 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

RELALMIF : RTC Relative Alarm Interrupt Indication\nNote: Software can also clear this bit after RTC interrupt has occurred
bits : 3 - 3 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

TICKSEL : Time Tick Register\nThese bits are used to select RTC time tick period for Periodic Time Tick Interrupt request. \n
bits : 0 - 2 (3 bit)
access : read-write

Enumeration:

End of enumeration elements list.

POWEN : Power ON\nRTC_RPWR will change to high state when POWEN value change from 0 to 1.\nNote: The following conditions will make RTC_RPWR low:\nSet POWEN bit to 0\nPOWOFFEN is set to 1 and the power key is pressed over the period of POWOFFT.\nThis bit can be read back after the RTC enable is active.
bits : 0 - 0 (1 bit)
access : read-write

SWPOWOFF : Software Core Power Disable Control\nIf the power key is pressed, the RTC_RPWR pin can be cleared by setting this bit and this can be cleared to 0 when the pressed power key, RTC_RPWR is released. If the power is not pressed, it is not used to set this bit.\n
bits : 1 - 1 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

POWOFFEN : Hardware Power Clear Enable Control\n
bits : 2 - 2 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

ALMIEN : Normal Time Alarm\n
bits : 3 - 3 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

RALMIEN : Relative Time Alarm\n
bits : 4 - 4 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

EDGE_TRIG : Power Key Trigger Mode \n
bits : 5 - 5 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

POWKEY : Power Key Status\n
bits : 7 - 7 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

POWOFFT : Power Clear Period\nIndicates that the period of the power core will be cleared after the power key is pressed. Its time scalar is one second so that the default is 5 second.
bits : 16 - 19 (4 bit)
access : read-write

RALMTIME : Relative Time Alarm Period (Second Unit)\nIndicates the period of the relative time alarm. Its maximum value is 1800.\n
bits : 20 - 31 (12 bit)
access : read-write

CBEN : 32768 Hz (LXT) Crystal Control\n
bits : 1 - 1 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

IOMSEL : X32_IN and X32_OUT PAD Digital Input Mode Control\n
bits : 2 - 2 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

XININDAT : X32_IN PAD Status\n
bits : 3 - 3 (1 bit)
access : read-only

XOUTDAT : X32_OUT PAD Status\n
bits : 4 - 4 (1 bit)
access : read-only

CKSRC : Internal RC Oscillator Control\n
bits : 0 - 0 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

RWEN : RTC Register Access Enable Password (R/W)\n
bits : 0 - 15 (16 bit)
access : read-write

Enumeration:

End of enumeration elements list.

RWENF : RTC Register Access Enable Flag (Read Only)\nNote: This bit will be set after RTC_RWEN[15:0] register is load a 0xA965, and it will be cleared when RTC_RWEN[15:0] is not 0xA965.
bits : 16 - 16 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

CALCNT : Cycle Number of PCLK During 1Hz\nThat is generated by dividing RTC Clock. This number can be used to deduct the real clock rate of RTC clock.
bits : 0 - 31 (32 bit)
access : read-only

SYNC : Polling the Flag to Detect RTC Register Write Complete\n
bits : 0 - 0 (1 bit)
access : read-only

Enumeration:

End of enumeration elements list.

RTC_SPRn : RTC Spare Register\n
bits : 0 - 31 (32 bit)
access : read-write

FRACTION : Fraction Part\nDigit in RTC_FREQADJ must be expressed as hexadecimal number.
bits : 0 - 5 (6 bit)
access : read-write

INTEGER : Integer Part\n
bits : 8 - 23 (16 bit)
access : read-write

PKEYTIME : Minimum Duration That Power Key Must Be Pressed to Turn on Core Power\n
bits : 24 - 27 (4 bit)
access : read-write

ADJTRG : RTC Clock Calibration Control This bit will be kept at High while the calibration is ongoing and cleared to Low automatically while the calibration is done and the content of RTC_CALCNT register is valid calibration flow as follows.
bits : 31 - 31 (1 bit)
access : read-write

Enumeration:

End of enumeration elements list.

SEC : 1-Sec Time Digit
bits : 0 - 3 (4 bit)
access : read-write

TENSEC : 10-Sec Time Digit
bits : 4 - 6 (3 bit)
access : read-write

MIN : 1-Min Time Digit
bits : 8 - 11 (4 bit)
access : read-write

TENMIN : 10-Min Time Digit
bits : 12 - 14 (3 bit)
access : read-write

HR : 1-Hour Time Digit
bits : 16 - 19 (4 bit)
access : read-write

TENHR : 10-Hour Time Digit
bits : 20 - 21 (2 bit)
access : read-write