Most likely you were given a citation (ticket) or a release agreement ordering you to appear in court for the crime of driving under the influence of intoxicants "DUII" (and perhaps other charges such as Reckless Driving). You must attend this court appearance or a bench warrant will be issued for your arrest. Please note that the DMV License Suspension and Criminal Charge(s) are completely separate issues. They have no effect on one another.
If you are convicted of DUII, your license will be suspended or revoked for one year (suspension), three years (suspension), or life (revocation). Defendants who enter and successfully complete the diversion program are not convicted of DUII and do not face this additional suspension.
To get your license reinstated following a first DUII conviction suspension you must install an ignition interlock device for six months; show proof of alcohol / drug treatment completion; file an SR-22 (and keep it on file for three years); and pay a $75 reinstatement fee.