INIR

CLR

TSSR

DWR

TAR

CAR

LIR

RIER

RIIR

TTR

AER

FCR

TLR

Active : RTC Active Status (Read only), 0: RTC is at reset state 1: RTC is at normal active state.
bits : 0 - 0 (1 bit)
access : read-only

INIR : RTC Initiation When chip is power on, RTC timer counter is at unknown state because RTC timer counter reset is individual with chip reset; user has to write a number (0x a5eb1357) to INIR to reset RTC controller to initialize RTC controller.
bits : 0 - 31 (32 bit)
access : write-only

_1DAY : 1-Day Calendar Digit (0~9)
bits : 0 - 3 (4 bit)
access : read-write

_10DAY : 10-Day Calendar Digit (0~3)
bits : 4 - 5 (2 bit)
access : read-write

_1MON : 1-Month Calendar Digit (0~9)
bits : 8 - 11 (4 bit)
access : read-write

_10MON : 10-Month Calendar Digit (0~1)
bits : 12 - 12 (1 bit)
access : read-write

_1YEAR : 1-Year Calendar Digit (0~9)
bits : 16 - 19 (4 bit)
access : read-write

_10YEAR : 10-Year Calendar Digit (0~9)
bits : 20 - 23 (4 bit)
access : read-write

_24H_12H : 24-Hour / 12-Hour Time Scale Selection It indicate that TLR and TAR are in 24-hour time mode or 12-hour time mode 1 = select 24-hour time scale 0 = select 12-hour time scale with AM and PM indication 24-hour time scale 12-hour time scale 24-hour time scale 12-hour time scale (PM time + 20) 00 12(AM12) 12 32(PM12) 01 01(AM01) 13 21(PM01) 02 02(AM02) 14 22(PM02) 03 03(AM03) 15 23(PM03) 04 04(AM04) 16 24(PM04) 05 05(AM05) 17 25(PM05) 06 06(AM06) 18 26(PM06) 07 07(AM07) 19 27(PM07) 08 08(AM08) 20 28(PM08) 09 09(AM09) 21 29(PM09) 10 10(AM10) 22 30(PM10) 11 11(AM11) 23 31(PM11)
bits : 0 - 0 (1 bit)
access : read-write

DWR : Day of the Week Register Value Day of the Week 0 Sunday 1 Monday 2 Tuesday 3 Wednesday 4 Thursday 5 Friday 6 Saturday
bits : 0 - 2 (3 bit)
access : read-write

_1SEC : 1 Sec Time Digit of Alarm Setting (0~9)
bits : 0 - 3 (4 bit)
access : read-write

_10SEC : 10 Sec Time Digit of Alarm Setting (0~5)
bits : 4 - 6 (3 bit)
access : read-write

_1MIN : 1 Min Time Digit of Alarm Setting (0~9)
bits : 8 - 11 (4 bit)
access : read-write

_10MIN : 10 Min Time Digit of Alarm Setting (0~5)
bits : 12 - 14 (3 bit)
access : read-write

_1HR : 1 Hour Time Digit of Alarm Setting (0~9)
bits : 16 - 19 (4 bit)
access : read-write

_10HR : 10 Hour Time Digit of Alarm Setting (0~2)
bits : 20 - 21 (2 bit)
access : read-write

_1DAY : 1-Day Calendar Digit of Alarm Setting (0~9)
bits : 0 - 3 (4 bit)
access : read-write

_10DAY : 10-Day Calendar Digit of Alarm Setting (0~3)
bits : 4 - 5 (2 bit)
access : read-write

_1MON : 1-Month Calendar Digit of Alarm Setting (0~9)
bits : 8 - 11 (4 bit)
access : read-write

_10MON : 10-Month Calendar Digit of Alarm Setting (0~1)
bits : 12 - 12 (1 bit)
access : read-write

_1YEAR : 1-Year Calendar Digit of Alarm Setting (0~9)
bits : 16 - 19 (4 bit)
access : read-write

_10YEAR : 10-Year Calendar Digit of Alarm Setting (0~9)
bits : 20 - 23 (4 bit)
access : read-write

LIR : Leap Year Indication REGISTER (Real only). 1 = It indicate that this year is leap year 0 = It indicate that this year is not a leap year
bits : 0 - 0 (1 bit)
access : read-only

AIER : Alarm Interrupt Enable 1 = RTC Alarm Interrupt is enabled 0 = RTC Alarm Interrupt is disabled
bits : 0 - 0 (1 bit)
access : read-write

TIER : Time Tick Interrupt Enable 1 = RTC Time Tick Interrupt is enabled 0 = RTC Time Tick Interrupt is disabled
bits : 1 - 1 (1 bit)
access : read-write

AIF : RTC Alarm Interrupt Flag When RTC Alarm Interrupt is enabled (RIER.AIER=1), RTC controller will set AIF to high once the RTC real time counters TLR and CLR reach the alarm setting time registers TAR and CAR. This bit is software clear by writing 1 to it. 1 = Indicates RTC Alarm Interrupt is requested if RIER.AIER=1. 0 = Indicates RTC Alarm Interrupt condition never occurred.
bits : 0 - 0 (1 bit)
access : read-write

TIF : RTC Time Tick Interrupt Flag When RTC Time Tick Interrupt is enabled (RIER.TIER=1), RTC controller will set TIF to high periodically in the period selected by TTR[2:0]. This bit is software clear by writing 1 to it. 1 = Indicates RTC Time Tick Interrupt is requested if RIER.TIER=1. 0 = Indicates RTC Time Tick Interrupt condition never occurred.
bits : 1 - 1 (1 bit)
access : read-write

TTR : Time Tick Register The RTC time tick period for Periodic Time Tick Interrupt request. TTR[2:0] Time tick (second) 0 1 1 1/2 2 1/4 3 1/8 4 1/16 5 1/32 6 1/64 7 1/128 Note: This register can be read back after the RTC register access enable bit ENF(AER[16]) is active.
bits : 0 - 2 (3 bit)
access : read-write

TWKE : RTC Timer Wakeup CPU Function Enable Bit If TWKE is set before CPU is in power-down mode, when a RTC Time Tick occurs, CPU will be wakened up by RTC controller. 1 = Enable the Wakeup function that CPU can be waken up from power-down mode by Time Tick. 0 = Disable Wakeup CPU function by Time Tick. Note: 1. Tick timer setting follows TTR[2:0] description. 2. The CPU can also be wakeup by alarm match occur.
bits : 3 - 3 (1 bit)
access : read-write

AER : RTC Register Access Enable Password (Write only) 0xA965 = Enable RTC access Others = Disable RTC access
bits : 0 - 15 (16 bit)
access : write-only

ENF : RTC Register Access Enable Flag (Read only) 1 = RTC register read/write enable 0 = RTC register read/write disable This bit will be set after AER[15:0] register is load a 0xA965, and be clear automatically 512 RTC clock or AER[15:0] is not 0xA965.Register\AER.ENF 1 0 INIR R/W R/W AER R/W R/W FCR R/W - TLR R/W R CLR R/W R TSSR R/W R/W DWR R/W R TAR R/W - CAR R/W - LIR R R RIER R/W R/W RIIR R/C R/C TTR R/W -
bits : 16 - 16 (1 bit)
access : read-only

FRACTION : Fraction Part Formula = (fraction part of detected value) x 60 Note: Digit in FCR must be expressed as hexadecimal number. Refer to 5.8.4.4 for the examples.
bits : 0 - 5 (6 bit)
access : read-write

INTEGER : Integer Part Integer part of detected value FCR[11:8] Integer part of detected value FCR[11:8] 32776 1111 32768 0111 32775 1110 32767 0110 32774 1101 32766 0101 32773 1100 32765 0100 32772 1011 32764 0011 32771 1010 32763 0010 32770 1001 32762 0001 32769 1000 32761 0000
bits : 8 - 11 (4 bit)
access : read-write

_1SEC : 1 Sec Time Digit (0~9)
bits : 0 - 3 (4 bit)
access : read-write

_10SEC : 10 Sec Time Digit (0~5)
bits : 4 - 6 (3 bit)
access : read-write

_1MIN : 1 Min Time Digit (0~9)
bits : 8 - 11 (4 bit)
access : read-write

_10MIN : 10 Min Time Digit (0~5)
bits : 12 - 14 (3 bit)
access : read-write

_1HR : 1 Hour Time Digit (0~9)
bits : 16 - 19 (4 bit)
access : read-write

_10HR : 10 Hour Time Digit (0~2)
bits : 20 - 21 (2 bit)
access : read-write