AS8268 datasheet(44/136 Pages) AMSCO

Part #	AS8268

Description	Single-Phase 2-Current Energy Measurement Integrated Circuits with Microcontroller, RTC, Programmable Multi-Purpose I/Os

PDF	136 Pages

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Manufacturer	AMSCO [ams AG]

Direct Link	http://www.ams.com

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44 / 136 page

Data Sheet AS8267 / AS8268

Revision 1.0, 19-Jun-07

Page 44 of 136

Seconds / VL Register (9100h)

MSB

LSB

sec.6

sec.5

sec.4

sec.3

sec.2

sec.1

sec.0

Bit

Symbol Function

VL = 0; reliable clock / calendar information guaranteed.

VL = 1; clock / calendar information is NOT guaranteed.

This bit is set after power-up of VDD_BAT. It can be cleared by software only.

sec.6

sec.5

sec.4

sec.3

sec.2

sec.1

sec.0

These bits represent current seconds value encoded in BCD format (values from 0 to 59).

Minutes Register (9101h)

MSB

LSB

min.6

min.5

min.4

min.3

min.2

min.1

min.0

These bits represent current minute value encoded in BCD format (values from 0 to 59).

Hours Register (9102h)

MSB

LSB

hour.5

hour.4

hour.3

hour.2

hour.1

hour.0

These bits represent the current hours value encoded in BCD format (values from 0 to 23).

Days Register (9103h)

MSB

LSB

day.5

day.4

day.3

day.2

day.1

day.0

These bits represent current day value encoded in BCD format (values from 1 to 31).

Note on leap years: ‘00’ years in general are no leap years unless the complete year can be divided by 400

(e.g. 2000). Since the year 2000 has passed already, this chip will not consider a leap year for ‘00’ years.

AS8268 Datasheet(PDF) 44 Page - ams AG

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