SL900A datasheet(34/90 Pages) AMSCO

34 / 90 page

SL900A – 34

ams Datasheet: 2014-May-06 [v1-01]

C u stom Com m a nd D e sc rip t ion

End Log

The END LOG command stops the logging procedure and turns

off the real time clock. It also clears the Active flag that is store

in the “System status” field in the EEPROM.

Command Structure:

Successful Reply Structure:

Start Log

The START LOG command starts the logging process. It

refreshes the data in the calibration registers, enables the RTC,

writes the Start time and sets the Active bit in the “System

status” field in the EEPROM.

Command Structure:

Successful Reply Structure:

The “Start Time” field is composed as:

SOF

Custom

Command Code

Handle

CRC

Frame - sync

0xE0

0xA6

16 bits

SOF

Header

Handle

CRC

EOF

Pilot tone + preamble

1 bit [0]

16 bits

Dummy bit [1]

SOF

Custom

Command Code

Start Time

Handle

CRC

Frame - sync

0xE0

0xA7

32 bits

16 bits

SOF

Header

Handle

CRC

EOF

Pilot tone + preamble

1 bit [0]

16 bits

Dummy bit [1]

Bit Number

31 … 26

25 … 22

21 … 17

16 … 12

11 … 6

5 … 0

Function

Year [5:0]

Month [3:0]

Day [4:0]

Hour [4:0]

Minute [5:0]

Second [5:0]

SL900A Datasheet(PDF) 34 Page - ams AG

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