Hi,
I would like to ask a question on bq27x00.
[Pin 9, GPIO] is
1. Not connected in datasheet example.
2. Described as can be configured as I/O based on EEPROM(PKCFG.GPIEN) and Flash (MODE.GPIEN, MODE.GPSTAT) register bits.
In bq27200 EVM sluu210, it is
1. Connected.
2. Without clear description in the document.
There are already I2C or HDQ pins for communication with the host, why is this GPIO pin still provided? Isn't it redundant? Could anyone advise me of the functionality of this pin?
Zheng