Tex. Code of Criminal Procedure § 1

Sec. 1. The court may set any criminal case for a pre-trial hearing before it is set for trial upon its merits, and direct the defendant and his attorney, if any of record, and the State's attorney, to appear before the court at the time and place stated in the court's order for a conference and hearing. The defendant must be present at the arraignment, and his presence is required during any pre-trial proceeding. The pre-trial hearing shall be to determine any of the following matters:

(1) Arraignment of the defendant, if such be necessary; and appointment of counsel to represent the defendant, if such be necessary;

(2) Pleadings of the defendant;

(3) Special pleas, if any;

(4) Exceptions to the form or substance of the indictment or information;

(5) Motions for continuance either by the State or defendant; provided that grounds for continuance not existing or not known at the time may be presented and considered at any time before the defendant announces ready for trial;

(6) Motions to suppress evidence--When a hearing on the motion to suppress evidence is granted, the court may determine the merits of said motion on the motions themselves, or upon opposing affidavits, or upon oral testimony, subject to the discretion of the court;

(7) Motions for change of venue by the State or the defendant; provided, however, that such motions for change of venue, if overruled at the pre-trial hearing, may be renewed by the State or the defendant during the voir dire examination of the jury;

(8) Discovery;

(9) Entrapment; and

(10) Motion for appointment of interpreter.