Hi,
Yes you can have one acl on one interface applied in one direction, let me explain by an example:
access-list test permit ip any any
access-group test in interface inside inside<------------------------------traffic
access-group test out interface inside inside------------------------------>traffic.
one acl can be applied for traffic coming into the interface and one for traffic leaving the interface.
I hope that resolves your query, do let me know if you have any questions.
Thanks,
Varun
Thanks,
Varun Rao