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RV-8564 Datasheet, PDF (2/40 Pages) MICORO CRYSTAL SWITZERLAND – I2C-Bus Interface Real Time Clock | |||
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Micro Crystal
Real Time Clock / Calendar Module
RV-8564
TABLE OF CONTENTS
1. OVERVIEW ........................................................................................................................................................ 4
2. GENERAL DESCRIPTION ................................................................................................................................ 4
3. BLOCK DIAGRAM............................................................................................................................................. 5
4. PINOUT .............................................................................................................................................................. 6
5. PIN DESCRIPTION ............................................................................................................................................ 7
6. FUNCTIONAL DESCRIPTION........................................................................................................................... 8
6.1. CLKOUT OUTPUT ..................................................................................................................................... 8
7. DEVICE PROTECTION DIAGRAM ................................................................................................................... 8
8. REGISTER ORGANIZATION ............................................................................................................................ 9
8.1. REGISTER OVERVIEW ............................................................................................................................. 9
8.2. CONTROL REGISTERS ............................................................................................................................ 9
8.2.1. CONTROL / STATUS 1 (address 00hâ¦bits description) ................................................................... 9
8.2.2. CONTROL / STATUS 2 (address 01hâ¦bits description) ................................................................. 10
8.3. TIME AND DATE REGISTERS................................................................................................................ 10
8.3.1. SECONDS (address 02hâ¦bits description) ..................................................................................... 10
8.3.2. MINUTES (address 03hâ¦bits description) ....................................................................................... 10
8.3.3. HOURS (address 04hâ¦bits description) .......................................................................................... 11
8.3.4. DAYS (address 05hâ¦bits description).............................................................................................. 11
8.3.5. WEEKDAYS (address 06hâ¦bits description) ................................................................................... 11
8.3.6. MONTHS / CENTURY (address 07hâ¦bits description) ................................................................... 12
8.3.7. YEARS (address 08hâ¦bits description) ........................................................................................... 13
8.4. ALARM REGISTERS ............................................................................................................................... 13
8.4.1. MINUTE ALARM (address 09hâ¦bits description) ............................................................................ 13
8.4.2. HOUR ALARM (address 0Ahâ¦bits description)............................................................................... 13
8.4.3. DAY ALARM (address 0Bhâ¦bits description) .................................................................................. 13
8.4.4. WEEKDAY ALARM (address 0Châ¦bits description) ....................................................................... 14
8.5. CLKOUT REGISTER ............................................................................................................................... 14
8.5.1. CLKOUT FREQUENCY (address 0Dhâ¦bits description) ................................................................ 14
8.6. TIMER REGISTER ................................................................................................................................... 14
8.6.1. TIMER CONTROL (address 0Ehâ¦bits description) ......................................................................... 15
8.6.2. TIMER (address 0Fhâ¦bits description) ............................................................................................ 15
8.7. REGISTER RESET VALUES................................................................................................................... 16
9. DETAILED FUNCTIONAL DESCRIPTION ..................................................................................................... 17
9.1. INTERRUPT OUTPUT ............................................................................................................................. 17
9.1.1. BITS TF AND AF ............................................................................................................................... 17
9.1.2. BITS TIE AND AIE ............................................................................................................................ 17
9.1.3. COUNTDOWN TIMER INTERRUPT ................................................................................................ 17
9.2. VOLTAGE LOW DETECTOR AND CLOCK MONITOR ......................................................................... 18
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