ISD91200 Series Technical Reference Manual
Release Date: Sep 16, 2019
- 204 -
Revision 2.4
5.8.4
Register Map
R
: read only,
W
: write only,
R/W
: both read and write,
C
: Only value 0 can be written
Register
Offset
R/W
Description
Reset Value
RTC Base Address:
RTC_BA = 0x4000_8000
RTC_INIT
0x000
R/W
RTC Initialization Register
0x0000_0000
RTC_RWEN
0x004
R/W
RTC Access Enable Register
0x0000_0000
RTC_FREQADJ
0x008
R/W
RTC Frequency Compensation Register
0x0000_0700
RTC_TIME
0x00C
R/W
Time Load Register
0x0000_0000
RTC_CAL
0x010
R/W
Calendar Load Register
0x0000_0000
RTC_CLKFMT
0x014
R/W
Time Scale Selection Register
0x0000_0001
RTC_WEEKDAY
0x018
R/W
Day of the Week Register
0x0000_0000
RTC_TALM
0x01C
R/W
Time Alarm Register
0x0000_0000
RTC_CALM
0x020
R/W
Calendar Alarm Register
0x0000_0000
RTC_LEAPYEAR
0x024
R
Leap year Indicator Register
0x0000_0000
RTC_INTEN
0x028
R/W
RTC Interrupt Enable Register
0x0000_0000
RTC_INTSTS
0x02C
R/W
RTC Interrupt Indicator Register
0x0000_0000
RTC_TICK
0x030
R/W
RTC Time Tick Register
0x0000_0000