Shot Clocks

[Zoochy]

Unlike game clocks that show tenths of a second, I know shot clocks only show whole numbers.
But do they operate the same way? As soon as the shot clock starts, it goes from displaying 30 straight to 29. But we know a full second has not passed at this point. It is really 29 +up to 9 tenths.
So if a shot clock shows '0', has a violation occurred? Or does it have .9 more seconds left?
I ask this because of the end of regulation of the Oklahoma State University v Baylor game.
When shot clock hit '0', there was .7 still remaining on the game clock. OSU put up a shot that went in the basket between the shot clock terminating and the game clock terminating.
Shot clock shows 0. (Game clock shows .7)
OSU attempts a try
Game clock/Horn/lights on backboard illuminate.
Ball goes in the basket

The crew determined a shot clock violation and put .7 on the clock and gave the ball to Baylor.

Thoughts/Comments