Cypress CY14B101P manual RTC Register Map1 BCD Format Data Function/Range, WDF Oscf

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PRELIMINARY

 

 

 

CY14B101P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 9. RTC Register Map[1, 2]

 

 

 

 

 

 

 

 

 

Register

 

 

 

 

 

 

BCD Format Data

 

 

 

 

Function/Range

D7

D6

D5

 

D4

D3

D2

D1

 

D0

 

 

 

 

0x0F

 

10s

Years

 

 

 

Years

 

Years: 00–99

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0x0E

0

0

 

 

0

 

10s

 

Months

 

Months: 01–12

 

 

 

 

 

 

 

Months

 

 

 

 

 

 

0x0D

0

0

 

 

10s Day

of Month

 

Day Of Month

 

Day of Month: 01–31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0x0C

0

0

 

 

0

 

0

0

 

Day of week

 

Day of week: 01–07

 

 

 

 

 

 

 

 

 

 

 

0x0B

0

0

 

 

10s

Hours

 

Hours

 

Hours: 00–23

 

 

 

 

 

 

 

 

 

 

 

0x0A

0

 

 

 

10s Minutes

 

 

Minutes

 

Minutes: 00–59

 

 

 

 

 

 

 

 

 

 

0x09

0

 

 

10s Seconds

 

 

Seconds

 

Seconds: 00–59

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0x08

OSCEN

0

 

 

Cal Sign

 

 

Calibration (00000)

 

Calibration Values [3]

 

(0)

 

 

 

(0)

 

 

 

 

 

 

 

 

0x07

WDS (0)

WDW (0)

 

 

 

WDT (000000)

 

 

 

Watchdog [3]

0x06

WIE (0)

AIE (0)

PFE (0)

 

0

H/L (1)

P/L (0)

0

 

0

Interrupts [3]

0x05

M (1)

0

 

 

10s Alarm Date

 

Alarm Day

 

Alarm, Day of Month: 01–31

 

 

 

 

 

 

 

 

 

 

0x04

M (1)

0

 

 

10s Alarm Hours

 

Alarm Hours

 

Alarm, Hours: 00–23

 

 

 

 

 

 

 

 

0x03

M (1)

10

Alarm Minutes

 

Alarm Minutes

 

Alarm, Minutes: 00–59

 

 

 

 

 

 

 

0x02

M (1)

10 Alarm Seconds

 

Alarm, Seconds

 

Alarm, Seconds: 00–59

 

 

 

 

 

 

 

 

0x01

 

10s Centuries

 

 

Centuries

 

Centuries: 00–99

 

 

 

 

 

 

 

 

 

 

 

 

0x00

WDF

AF

PF

 

OSCF

0

CAL (0)

W (0)

 

R (0)

Flags [3]

Note

1.( ) designates values shipped from the factory.

2.The unused bits of RTC registers are reserved for future use and should be set to ‘0’

3.This is a binary value, not a BCD value.

Document #: 001-44109 Rev. *B

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Contents Overview FeaturesLogic Block Diagram Sram ArrayPinouts Pin Definitions Pin Name Type DescriptionHold Sram Read Device OperationSram Write Store OperationSerial Peripheral Interface Commonly used terms used in SPI protocol are given below SPI MasterSystem Configuration Using SPI nvSRAM SPI ModesSPI Operating Features SPI Functional DescriptionStatus Register Read Status Register Rdsr InstructionWrite Status Register Wrsr Instruction Write Protection and Block Protection Write Enable Wren InstructionWrite Disable Wrdi Instruction Block ProtectionWrite Sequence Write Memory AccessRead Sequence Read Wpen WENBurst Mode Read Instruction Timing Read RTC Rdrtc InstructionWrite RTC Wrtc Instruction AutoStore DisableNvSRAM Special Instructions Software Store StoreSoftware Recall Recall AutoStore Disable AsdisbAutoStore Enable Asenb Hold Pin OperationReal Time Clock Operation Alarm Watchdog TimerCalibrating the Clock Interrupts Power MonitorInterrupt Register Flags RegisterAccessing the Real Time Clock through SPI RTC Recommended Component ConfigurationRTC Register Map1 BCD Format Data Function/Range WDF OscfOscen Alarm Minutes Alarm DayAlarm Hours Register Map DetailFlags 0x00 Register Map Detail Alarm SecondsTime Keeping Centuries WDF Oscf CALOperating Range DC Electrical CharacteristicsMaximum Ratings Parameter Description Test Conditions Min Max UnitThermal Resistance Data Retention and EnduranceCapacitance AC Test ConditionsAC Switching Characteristics ~ ~ ~ ~ AutoStore or Power Up Recall Switching WaveformsParameters Description CY14B101P Unit Min Max CY14B101P Parameter Description To Output Active Time when write latch not setHardware Store Cycle Hardware Store Pulse WidthPart Numbering Nomenclature Ordering Code Package Diagram Package Type Operating RangeOrdering Information CY 14 B 101 P SF X C TPackage Diagrams Pin 300 mil Soic PackageDocument History REV ECN noSubmission Orig. Description of Change Date Sales, Solutions, and Legal Information Worldwide Sales and Design Support Products PSoC SolutionsUSB