Guys, from the launchpad schematic for RM57L843BZWTT, signals are named with a coded number. Example, AD1IN_0/7.3B
https://www.ti.com/tool/LAUNCHXL2-RM57L
What is 7.3B about? I also see 8.3B for both +5V and GND:
So again, what is the code about? or 8.3B in this case?
Thanks!