Where could I find more information about the use of the GNDSEL bit in the bq27501? In the specification SLUS879A - June 2009 I find I think some confusing information.
In chapter 5.3.1 I can read : GNDSEL = ADC ground selection control. The Vss (Pin 6) is selected as the ground referenced when the bit is clear. Pin 7 is selected when the bit is set. Default = 1.
In chpater 4.6 DATA FLASH SUMMARY I can read: Operation Configuration Default Value 0x0979.
This tells that bit GNDSEL = 0 by default.
What is correct? What is the real use of GNDSEL?