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CY14B104M Datasheet(PDF) 11 Page - Cypress Semiconductor

Part # CY14B104M
Description  4-Mbit (512 K 횞 8/256 K 횞 16) nvSRAM with Real Time Clock
Download  33 Pages
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY14B104M Datasheet(HTML) 11 Page - Cypress Semiconductor

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CY14B104K, CY14B104M
Document #: 001-07103 Rev. *S
Page 11 of 33
Table 4. RTC Register Map[9]
Register
BCD Format Data[10]
Function/Range
CY14B104K CY14B104M
D7
D6
D5
D4
D3
D2
D1
D0
0x7FFFF
0x3FFFF
10s years
Years
Years: 00–99
0x7FFFE
0x3FFFE
0
0
0
10s
months
Months
Months: 01–12
0x7FFFD
0x3FFFD
0
0
10s day of month
Day of month
Day of month: 01–31
0x7FFFC
0x3FFFC
0
0
0
0
0
Day of week
Day of week: 01–07
0x7FFFB
0x3FFFB
0
0
10s hours
Hours
Hours: 00–23
0x7FFFA
0x3FFFA
0
10s minutes
Minutes
Minutes: 00–59
0x7FFF9
0x3FFF9
0
10s seconds
Seconds
Seconds: 00–59
0x7FFF8
0x3FFF8
OSCEN
(0)
0Cal
sign
(0)
Calibration (00000)
Calibration values [11]
0x7FFF7
0x3FFF7
WDS
(0)
WDW (0)
WDT (000000)
Watchdog [11]
0x7FFF6
0x3FFF6
WIE (0)
AIE (0)
PFE
(0)
0H/L
(1)
P/L (0)
0
0
Interrupts [11]
0x7FFF5
0x3FFF5
M (1)
0
10s alarm date
Alarm day
Alarm, day of month:
01–31
0x7FFF4
0x3FFF4
M (1)
0
10s alarm hours
Alarm hours
Alarm, hours: 00–23
0x7FFF3
0x3FFF3
M (1)
10 alarm minutes
Alarm minutes
Alarm, minutes:
00–59
0x7FFF2
0x3FFF2
M (1)
10 alarm seconds
Alarm, seconds
Alarm, seconds:
00–59
0x7FFF1
0x3FFF1
10s Centuries
Centuries
Centuries: 00–99
0x7FFF0
0x3FFF0
WDF
AF
PF
OSCF[12]
0
CAL (0)
W (0)
R (0)
Flags[11]
Notes
9. Upper byte D15-D8 (CY14B104M) of RTC registers are reserved for future use.
10. ( ) designates values shipped from the factory.
11. This is a binary value, not a BCD value.
12. When user resets OSCF flag bit, the flags register will be updated after tRTCp time.
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