Cypress CY14B108K Specification Sheet page 11

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Table 4. RTC Register Map
Register
CY14B108K CY14B108M
0xFFFFF 0x7FFFF
0xFFFFE 0x7FFFE
0xFFFFD 0x7FFFD
0xFFFFC 0x7FFFC
0xFFFFB 0x7FFFB
0xFFFFA 0x7FFFA
0xFFFF9 0x7FFF9
0xFFFF8 0x7FFF8
0xFFFF7 0x7FFF7
0xFFFF6 0x7FFF6
0xFFFF5 0x7FFF5
0xFFFF4 0x7FFF4
0xFFFF3 0x7FFF3
0xFFFF2 0x7FFF2
0xFFFF1 0x7FFF1
0xFFFF0 0x7FFF0
Notes
7. Upper Byte D -D (CY14B108M) of RTC registers are reserved for future use
15 8
8. ( ) designates values shipped from the factory.
9. This is a binary value, not a BCD value.
Document #: 001-47378 Rev. **
PRELIMINARY
BCD Format Data
D7 D6 D5
10s Years
0 0 0
0 0 10s Day of Month
0 0 0
0 0 10s Hours
0 10s Minutes
0 10s Seconds
OSCEN 0 Cal Sign
(0) (0)
WDS WDW (0)
(0)
WIE (0) AIE (0) PFE (0)
M (1) 0 10s Alarm Date
M (1) 0 10s Alarm Hours
M (1) 10 Alarm Minutes
M (1) 10 Alarm Seconds
10s Centuries
WDF AF PF
CY14B108K, CY14B108M
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D4 D3 D2
Years
10s Months
Months
Day Of Month
0 0 Day of week
Hours
Minutes
Seconds
Calibration (00000)
WDT (000000)
0 H/L P/L (0)
(1)
Alarm Day
Alarm Hours
Alarm Minutes
Alarm, Seconds
Centuries
OSCF 0 CAL (0) W (0)
Function/Range
D1 D0
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
Watchdog
0 0 Interrupts
Alarm, Day of Month:
01–31
Alarm, Hours: 00–23
Alarm, Minutes:
00–59
Alarm, Seconds:
00–59
Centuries: 00–99
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R (0) Flags
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