Cypress STK17T88 manual Mode Selection, A14-A0 Mode

Page 11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STK17T88

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MODE Selection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A14-A0

Mode

I/O

Power

Notes

 

E

 

 

W

 

 

G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

H

 

X

 

X

 

 

X

Not Selected

Output High Z

Standby

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

H

 

L

 

 

X

Read SRAM

Output Data

Active

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

L

 

X

 

 

X

Write SRAM

Input Data

Active

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

H

 

L

 

 

0x0E38

Read SRAM

Output Data

 

 

 

 

 

 

 

 

 

 

 

 

 

0x31C7

Read SRAM

Output Data

 

 

 

 

 

 

 

 

 

 

 

 

 

0x03E0

Read SRAM

Output Data

Active

17,18, 19

 

 

 

 

 

 

 

 

 

 

 

0x3C1F

Read SRAM

Output Data

 

 

 

 

 

 

 

 

 

 

 

 

 

0x303F

Read SRAM

Output Data

 

 

 

 

 

 

 

 

 

 

 

 

 

0x0FC0

Nonvolatile Store

Output High Z

ICC2

 

 

L

 

H

 

L

 

 

0x0E38

Read SRAM

Output Data

Active

 

 

 

 

 

 

 

 

 

 

 

 

0x31C7

Read SRAM

Output Data

 

 

 

 

 

 

 

 

 

 

 

 

 

0x03E0

Read SRAM

Output Data

 

17,18, 19

 

 

 

 

 

 

 

 

 

 

 

0x3C1F

Read SRAM

Output Data

 

 

 

 

 

 

 

 

 

 

 

 

 

0x303F

Read SRAM

Output Data

 

 

 

 

 

 

 

 

 

 

 

 

 

0x0C63

Nonvolatile Recall

Output High Z

 

 

Notes

17.The six consecutive addresses must be in the order listed. W must be high during all six consecutive cycles to enable a nonvolatile cycle.

18.While there are 15 addresses on the STK17T88, only the lower 13 are used to control software modes.

19.I/O state depends on the state of G. The I/O table shown assumes G low.

Document Number: 001-52040 Rev. *A

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Contents Cypress Semiconductor Corporation FeaturesLogic Block Diagram DescriptionPin Descriptions Pin ConfigurationsAbsolute Maximum Ratings DC CharacteristicsRF SSOP-48 Package Thermal Characteristics Symbol Parameter Commercial Industrial Units MinCapacitance AC Test ConditionsIbak RTC DC CharacteristicsSram Read Cycles #1 and #2 Symbols Parameter STK17T88-25 STK17T88-45 Units Alt Min MaxMin Max Symbols Parameter STK17T88-25 STK17T88-45 Units Alt MinSram Write Cycles #1 and #2 Symbols Parameter STK17T88 Units Standard Alternate Min Max AutoStore/Power Up RecallCONTROLLED13 Software-Controlled STORE/RECALL CycleHardware Store Cycle Soft Sequence CommandsHardware Store to Sram Disabled Symbols Parameter STK17T88 Units Standard Min MaxA14-A0 Mode Mode SelectionHardware Store HSB Operation Hardware Recall Power UPNvSRAM Operation AutoStore OperationBest Practices Software StoreNoise Considerations Preventing AutoStoreReal Time Clock Power Monitor AlarmWatchdog Timer Flags Register Interrupt RegisterWDS WDW WDT RTC Register MapRegister BCD Format Data Function / Range OscenRegister Map Detail 0x7FF2 Alarm Seconds 0x7FF5 Alarm Day0x7FF4 Alarm Hours 10s Alarm Hours 0x7FF3 Alarm Minutes0x7FF0 Flags User must reset this bit to 0 to clear this conditionOrdering Code Description Access Times ns Temperature Ordering CodesPackage Diagram Document History Sales, Solutions, and Legal InformationWorldwide Sales and Design Support Products PSoC Solutions