Micro crystal RV-8063-C7, Руководство по применению

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Micro Crystal
Ultra Small Real-Time Clock Module with SPI-Bus Interface RV-8063-C7
October 2018 2/58 Rev. 1.1
TABLE OF CONTENTS
1. OVERVIEW ..................................................................................................................................................... 4
GENERAL DESCRIPTION ......................................................................................................................... 4 1.1.
APPLICATIONS ......................................................................................................................................... 5 1.2.
ORDERING INFORMATION ...................................................................................................................... 5 1.3.
2. BLOCK DIAGRAM ......................................................................................................................................... 6
PINOUT ...................................................................................................................................................... 7 2.1.
PIN DESCRIPTION .................................................................................................................................... 7 2.2.
FUNCTIONAL DESCRIPTION ................................................................................................................... 8 2.3.
DEVICE PROTECTION DIAGRAM ........................................................................................................... 9 2.4.
3. REGISTER ORGANIZATION ....................................................................................................................... 10
REGISTER OVERVIEW ........................................................................................................................... 10 3.1.
CONTROL REGISTERS .......................................................................................................................... 11 3.2.
TIME AND DATE REGISTERS ................................................................................................................ 14 3.3.
ALARM REGISTERS ............................................................................................................................... 17 3.4.
TIMER REGISTERS ................................................................................................................................. 20 3.5.
REGISTER RESET VALUES SUMMARY ............................................................................................... 21 3.6.
4. DETAILED FUNCTIONAL DESCRIPTION .................................................................................................. 22
POWER ON RESET (POR) ...................................................................................................................... 22 4.1.
SOFTWARE RESET ................................................................................................................................ 22 4.2.
OSCILLATOR STOP FLAG ..................................................................................................................... 23 4.3.
SETTING AND READING THE TIME ...................................................................................................... 24 4.4.
INTERRUPT OUTPUT ............................................................................................................................. 25 4.5.
ALARM FUNCTION ................................................................................................................................. 26 4.6.
ALARM INTERRUPT ........................................................................................................................ 26 4.6.1.
COUNTDOWN TIMER FUNCTION .......................................................................................................... 27 4.7.
TIMER FLAG TF ............................................................................................................................... 27 4.7.1.
TIMER INTERRUPT MODE TI_TP ................................................................................................... 27 4.7.2.
PULSE GENERATOR 2 .................................................................................................................... 27 4.7.3.
USE OF THE COUNTDOWN TIMER ............................................................................................... 28 4.7.4.
MINUTE AND HALF MINUTE INTERRUPT FUNCTION ........................................................................ 30 4.8.
PULSE GENERATOR 1 .................................................................................................................... 30 4.8.1.
FREQUENCY OFFSET COMPENSATION ............................................................................................. 31 4.9.
OFFSET COMPENSATION CALCULATION WORKFLOW ............................................................. 32 4.9.1.
COMPENSATION INTERRUPT FUNCTION ........................................................................................... 34 4.10.
COMPENSATION PULSES WHEN MODE = 0 (NORMAL MODE) ................................................. 34 4.10.1.
COMPENSATION PULSES WHEN MODE = 1 (FAST MODE) ....................................................... 35 4.10.2.
CLKOUT FREQUENCY SELECTION ..................................................................................................... 36 4.11.
STOP BIT FUNCTION .............................................................................................................................. 37 4.12.