DS1267

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DS1267 BLOCK DIAGRAM Figure 1

I/O SHIFT REGISTER Figure 2

Transmission of data always begins with the stack select bit followed by the potentiometer-1 wiper

position value and lastly the potentiometer-0 wiper position value.

When wiper position data is to be written to the DS1267, 17 bits (or some integer multiple) of data should

always be transmitted. Transactions which do not send a complete 17-bits (or multiple) will leave the

register incomplete and possibly an error in the desired wiper positions.

the contents of the I/O shift register are loaded into the respective multiplexers for setting wiper position.

the DS1267 wiper positions will be set at 50% of the total resistance or binary value 1000 0000.