Datasheet PT7C4563BQ (Diodes) - 10

PT7C4563BQ 2. Control and Status Register
Addr. Description D7 D6 D5 D4 D3 D2 D1 D0 (hex) 00 Control/Status 1 × × × × × × × × (Default) 0 Undefined 0 Undefined 1 Undefined Undefined Undefined 01 Control/Status 2 × × × × AF × AIE × (Default) Undefined Undefined Undefined 0 Undefined Undefined 0 0 0D SQW Control SQWE × × × × × RS1 RS0 (Default) 1 Undefined Undefined Undefined Undefined Undefined 0 0
a) Alarm Interrupt
•
AIE:
Alarm Interrupt Enable Bit. AIE Data Description 0 Alarm Interrupt Disabled Default Read/Write 1 Alarm Interrupt Enabled •
AF:
Alarm Flag AF Data Description 0 Alarm Flag Inactive Read 1 Alarm Flag Active 0 Alarm Flag is Cleared Write 1 Alarm flag Remains Unchanged
b) SQW Control
•
SQWE:
SQW Output Clock Enable Bit. SQWE Data Description 0 The SQW output is inhibited and SQW output is set to high-impedance. Read/Write 1 The SQW output is activated. Default •
RS1, RS0:
SQW Output Frequency Select. RS1, RS0 Data SQW Output Frequency (Hz) 00 32.768k Default 01 1.024k Read/Write 10 32 11 1 PT7C4563BQ
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July 2019 Document Number DS41477 Rev 2-2 10 © Diodes Incorporated Document Outline Features Description Pin Configuration Pin Description Function Block Maximum Ratings Recommended Operating Conditions DC Electrical Characteristics AC Electrical Characteristics Recommended Layout for Crystal Cpar = all parasitical capacitor between X1 and X2 Crystal Specifications Function Description Overview of Functions Registers Control and Status Register Time Counter Days of the Week Counter Calendar Counter Communication I2C Bus Interface Overview of I2C Bus System Configuration Starting and Stopping I2C Bus Communications Slave Address Part Marking Packaging Mechanical W (SOIC-8)