Address 33 to Address 39—RTCT (Set for Time Registers)
Table 53. Bus Assignment Bit Map for the RTCT Registers
Register
Data Range
RTCT_SEC
0 to 59
RTCT_MIN
0 to 59
RTCT_HR
0 to 23
RTCT_DAY
0 to 30
RTCT_MO
0 to 11
RTCT_YR
0 to 127
RTCT_WK
0 to 6
1
Default value is 01/01/2000 00:00.
2
These registers are backed up with a backup battery. In case of undervoltage lockout of the BU3INT pin, all data is cleared to 0. The read status is assigned to Bit 7
2
(see the I
C Interface section).
Address 40—RTCADJ (RTC Adjust Data Register)
Table 54. Bus Assignment Bit Map
B7 (MSB)
B6
3
RDST_ADJ
ADJS
±
1
The total minimum adjustment value is −61 ppm, and the total maximum adjustment value is +61 ppm.
2
This register is backed up by a backup battery. If an undervoltage lockout of the BU3INT pin occurs, all data is cleared to 0. The read status is assigned to Bit 7 (see the
I
2
C Interface section).
3
The ADJS bit determines if the set adjustment values (shown in parentheses) of Bits[5:0] are added or subtracted to increase or decrease the correction. If Bit 6 is set to 1, the
values of Bits[5:0] that are set to 1 are added; if Bit 6 is set to 0, the values of Bits[5:0] that are set to 1 are subtracted.
Address 41 to Address 43—RTCAL (RTC Countdown Alarm Timer One-Shot Data Registers)
Table 55. Bus Assignment Bit Map
Register
Data Range
RTCAL_SEC
0 to 119
RTCAL_MIN
0 to 59
RTCAL_HR
0 to 31
Address 44 to Address 59—REG0 to REG15 (Configuration Registers)
Table 56. Bus Assignment Bit Map for the Configuration Registers
Register
B7 (MSB)
REG0
RDST_REG0
REG1
RDST_REG1
REG2
RDST_REG2
REG3
RDST_REG3
REG4
RDST_REG4
REG5
RDST_REG5
REG6
RDST_REG6
REG7
RDST_REG7
REG8
RDST_REG8
REG9
RDST_REG9
REG10
RDST_REG10
REG11
RDST_REG11
REG12
RDST_REG12
REG13
RDST_REG13
REG14
RDST_REG14
REG15
RDST_REG15
1
These registers are backed up with a backup battery. In case of undervoltage lockout of the BU3INT pin, all data is cleared to 0. The read status is assigned to Bit 7 (see
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