Oscen, Wds, WDF Oscf | Cypress CY14B104M, CY14B104K manual

PRELIMINARY

CY14B104K, CY14B104M

Table 4. RTC Register Map[8]

Register

BCD Format Data[9]

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: 01–12

Months

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

Cal Sign

Calibration (00000)

Calibration Values [10]

(0)

(0)

0x7FFF7

0x3FFF7

WDS

WDW (0)

WDT (000000)

Watchdog [10]

(0)

0x7FFF6

0x3FFF6

WIE (0)

AIE (0)

PFE (0)

0

H/L

P/L (0)

0

0

Interrupts [10]

(1)

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

0

CAL (0)

W (0)

R (0)

Flags [10]

Note

8.Upper Byte D15-D8(CY14B104MA) of RTC registers are reserved for future use

9.( ) designates values shipped from the factory.

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

Document #: 001-07103 Rev. *K

Page 10 of 31

[+] Feedback

Image 10

Cypress CY14B104M, CY14B104K manual Oscen, Wds, WDF Oscf

Contents

Functional Description FeaturesCypress Semiconductor Corporation 198 Champion Court Pinouts Sram Write Device OperationSram Read AutoStore Operation Software Recall Hardware Recall Power UpHardware Store HSB Operation Software Store Preventing AutoStore Mode SelectionA15 A06 Mode Power Store Noise Considerations Data ProtectionReal Time Clock Operation Watchdog Timer AlarmCalibrating the Clock Interrupts Power MonitorInterrupt Register Flags Register PFE Power Fail Enable WDF Watchdog Timer FlagPF Power Fail Flag AF Alarm Flag WDS OscenWDF Oscf 0x7FFF9 0x3FFF9 Time Keeping Seconds For the register is Watchdog 0x7FFF5 0x3FFF5 Alarm DayTime-base Write only. Reading it always returns a This condition and write 0 to clear this flag 0x7FFF2 0x3FFF2 Alarm SecondsCenturies 0x7FFF0 0x3FFF0 Flags Document # 001-07103 Rev. *K Maximum Ratings DC Electrical CharacteristicsRange Ambient Temperature Operating Range Thermal Resistance Data Retention and EnduranceCapacitance AC Test Conditions RTC Battery Pin Voltage RTC Backup CurrentHot Temperature 85 oC RTC Capacitor Pin Voltage TOCS RTC Oscillator Time to Start Parameters Sram Read Cycle AC Switching CharacteristicsSwitching Waveforms Sram Write Cycle Address Valid Data Output High Impedance Output Data ValidStandby Active Data Input Input Data Valid Not applicable for RTC register writes Data Input Data OutputInput Data Valid High Impedance Address Address Valid AutoStore/Power Up Recall Parameters Description 20 ns 25 ns 45 ns Unit Min Max Software Controlled Store and Recall Cycle Description 20 ns 25 ns 45 ns Unit Min To Output Active Time when write latch not setHardware Store Cycle Hardware Store Pulse Width Inputs and Outputs Mode Power For x8 ConfigurationFor x16 Configuration Truth Table For Sram Operations ZS Tsop Part Numbering Nomenclature CY14 B 104 K ZS P 20 X C TNvsram Ordering Information Package Diagrams Pin Tsop II 51-85160 PCI Document HistoryTUP UHA GVCH/PYRS 6 updated Data protection description Added 20 ns access speed in FeaturesFootnote 1 and 8 referenced for Mode selection Table 6 Updated Starting and stopping the oscillator description Worldwide Sales and Design Support Products PSoC Solutions Sales, Solutions, and Legal InformationUSB