The datasheet for the AM69 uses both 'z' and 'n' to signify active low signals: https://www.ti.com/lit/gpn/am69
For example, both DDR1_RESETn and MCU_PORz are active-low signals.
Why use multiple naming conventions to signify active low signals?
Is there some distinction between the signals with the 'z' suffix and the signals with the 'n' suffix?
To make matters more confusing, the UltraLibrarian symbol only uses the '_N' convention:
