CY14B101K-SP25XI Ver la hoja de datos (PDF) - Cypress Semiconductor
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CY14B101K-SP25XI Datasheet PDF : 24 Pages
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CY14B101K
Table 3. RTC Register Map
BCD Format Data
Register
D7
D6
D5
D4
D3
D2
D1
D0
0x1FFFF
10s Years
Years
0x1FFFE 0
0
0
10s
Months
Months
0x1FFFD 0
0 10s Day of Month
Day Of Month
0x1FFFC 0
0
0
0
0
Day of week
0x1FFFB 0
0
10s Hours
Hours
0x1FFFA 0
10s Minutes
Minutes
0x1FFF9
10s Seconds
Seconds
0x1FFF8 OSCEN 0 Cal Sign
Calibration
0x1FFF7 WDS WDW
WDT
0x1FFF6 WIE AIE PFE
0
H/L
P/L
0
0
0x1FFF5 M
0 10s Alarm Date
Alarm Day
0x1FFF4 M
0 10s Alarm Hours
Alarm Hours
0x1FFF3 M
10 Alarm Minutes
Alarm Minutes
0x1FFF2 M
10 Alarm Minutes
Alarm, Seconds
0x1FFF1
10s Centuries
Centuries
0x1FFF0 WDF AF
PF OSCF
0
CAL
W
R
Function/Range
Years: 00 – 99
Months: 01 – 12
Day of Month: 01 – 31
Day of week: 01 – 07
Hours: 00 – 23
Minutes: 00 – 59
Seconds: 00 – 59
Calibration Values [4]
Watchdog [4]
Interrupts [4]
Alarm, Day of Month: 01 – 31
Alarm, Hours: 00 – 23
Alarm, Minutes: 00 – 59
Alarm, Seconds: 00 – 59
Centuries: 00 – 99
Flags [4]
Table 4. Register Map Detail
Time Keeping – Years
D7
0x1FFFF
D6
D5
10s Years
D4
D3
D2
D1
D0
Years
Contains the lower two BCD digits of the year. Lower nibble contains the value for years and upper nibble contains
the value for 10s of years. Each nibble operates from 0 to 9. The range for the register is 0 – 99.
Time Keeping – Months
D7
D6
D5
D4
D3
D2
D1
D0
0x1FFFE
0
0
0
10s Month
Months
Contains the BCD digits of the month. Lower nibble contains the lower digit and operates from 0 to 9 and upper
nibble (one bit) contains the upper digit and operates from 0 to 1. The range for the register is 1 – 12.
Time Keeping – Date
D7
D6
D5
D4
D3
D2
D1
D0
0x1FFFD
0
0
10s Day of Month
Day of Month
Contains the BCD digits for the date of the month. Lower nibble contains the lower digit and operates from 0 to 9
and upper nibble contains the upper digit and operates from 0 to 3. The range for the register is 1 – 31. Leap years
are automatically adjusted for.
Time Keeping – Day
D7
D6
D5
0x1FFFC
0
0
0
D4
D3
D2
D1
D0
0
0
Day of Week
Lower nibble contains a value that correlates to day of the week. Day of the week is a ring counter that counts from
1 to 7 then returns to 1. The user must assign meaning to the day value, as the day is not integrated with the date.
Note
4. This register contains a binary, not BCD, value.
Document Number: 001-06401 Rev. *G
Page 10 of 24
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