enable pin 1 on l293d

Hello,

i put a circuit together where i control a l293d with an attiny85 to control only the speed of one dc motor. Just using the left side of l293d. Seems to work even though i havent connect the enable pin 1 to anything. Reading blogs and watching tutorials confused me, cause people suggests to actually put enable pin 1 on 5v to put it high. Now i m not sure whats the difference between not connecting the enable pin 1 at all or puting it on 5v? Can anyone help me there to understand?

Thank you!
Anina

The data sheet shows the enable pins either tied to Vcc or pulled up to Vcc with a 10K resistor.

Thanks. Hooked it up to Vcc!