CY14B104K(2009) Ver la hoja de datos (PDF) - Cypress Semiconductor

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CY14B104K
(Rev.:2009)

4 Mbit (512K x 8/256K x 16) nvSRAM with Real Time Clock

Cypress Semiconductor 

CY14B104K, CY14B104M

Table 4. RTC Register Map[8]

Register

BCD Format Data[9]

CY14B104K CY14B104M D7

D6

D5

D4

D3

D2

D1 D0

0x7FFFF

0x3FFFF

10s Years

Years

0x7FFFE 0x3FFFE

0

0

0

10s

Months

Months

0x7FFFD 0x3FFFD

0

0

10s Day of Month

Day Of Month

0x7FFFC 0x3FFFC

0

0

0

0

0

Day of Week

0x7FFFB 0x3FFFB

0

0

10s Hours

Hours

0x7FFFA

0x3FFFA

0

10s Minutes

Minutes

0x7FFF9

0x3FFF9

0

10s Seconds

Seconds

0x7FFF8

0x3FFF8 OSCEN

0

Cal Sign

(0)

(0)

Calibration (00000)

0x7FFF7

0x3FFF7

WDS WDW (0)

(0)

WDT (000000)

0x7FFF6

0x3FFF6 WIE (0) AIE (0) PFE (0)

0

H/L P/L (0) 0

0

(1)

0x7FFF5

0x3FFF5 M (1)

0

10s Alarm Date

Alarm Day

0x7FFF4

0x7FFF3

0x3FFF4

0x3FFF3

M (1)

M (1)

0

10s Alarm Hours

10 Alarm Minutes

Alarm Hours

Alarm Minutes

0x7FFF2

0x3FFF2 M (1)

10 Alarm Seconds

Alarm, Seconds

0x7FFF1

0x7FFF0

0x3FFF1

0x3FFF0

WDF

10s Centuries

AF

PF

OSCF

Centuries

0 CAL (0) W (0) R (0)

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 [10]

Watchdog [10]

Interrupts [10]

Alarm, Day of Month:

01–31

Alarm, Hours: 00–23

Alarm, Minutes:

00–59

Alarm, Seconds:

00–59

Centuries: 00–99

Flags[10]

Notes

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. *M

Page 11 of 33

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