A320
Flight Crew Air Transport Pilot (ATP)
Communication Breakdown
ATC Issue All Types; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance; Flight Crew Became Reoriented
Human Factors; Procedure
We followed pre-departure procedures per FOM and PH; including route verification and departure briefing. After takeoff; when handed over to Departure Control; we were told that we were not supposed to turn on the RNAV departure and instead we were supposed to hold a heading. We explained that we had not received that amended clearance via PDC NOR had the Tower told us about it. ATC's reply was 'It was on the ATIS.'  Although I have heard ATIS information say things like 'expect to fly the RNAV departure' or 'expect to fly runway heading;' I have never gotten an amended release to a PDC clearance via ATIS. Out of MIA; in fact; we are sometimes assigned a heading by the Tower before takeoff.  NOTE: I am new on the Airbus; and ATIS arrives to us via a piece of paper. I noted the ATIS we got after this event and it was Arrival ATIS. Apparently; this is always the case when requesting ATIS via the MCDU. The 'amended clearance' was on the DEPARTURE ATIS which; in hindsight; is something that we should have gotten over the radio.    1) There should never be an amended clearance delivered over the ATIS; especially if it is not reflected on the PDC. 2) We got arrival ATIS instead of departure ATIS.  For # 1: Tell ATC to stop that confusing procedure. PDCs should never be amended via ATIS.    For # 2: Emphasize that sometimes airports have different ATIS; one for arrival and one for departures...and put out a bulletin emphasizing the importance of getting the correct information for the next phase of flight.
A320 Captain reports departing MIA without a revision to their PDC issued via Departure ATIS.  ATIS requested via ACARS is Arrival ATIS and did not contain the revision.