AN A319 LOST ALL FUEL QUANTITY DISPLAY INFO ON ECAM AND MCDU. DIVERTED TO ENRTE ARPT.

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DURING CRUISE PHASE; WE GOT AN ECAM WARNING; 'FUEL AUTO FEED FAULT.' FOLLOWED ECAM PROC. SECONDS LATER; ALL FUEL INDICATIONS ON FUEL ECAM PAGE WENT TOTALLY BLANK. ALL FUEL QUANTITIES; BOTH ON ECAM AND IN MCDU; DISAPPEARED. CONTACTED DISPATCH AND MAINT THROUGH ACARS 'DISPLAY CALL ME' FUNCTION. WHEN DISPATCH CAME ON; I TOLD THEM WE HAD A PROB AND TO GET MAINT ON LINE. WE TOLD BOTH DISPATCH AND MAINT WHAT THE PROB WAS. FREQ WAS VERY SCRATCHY; MAINT WAS NOT ABLE TO UNDERSTAND WHETHER WE WERE ABLE TO RESET CIRCUIT BREAKERS. WITH NO FUEL INDICATIONS; ALL INOP; WE (MYSELF AND FO) DECIDED TO GET THE ACFT ON THE GND IN DEN. WE HAD DISPATCHED TO SFO WITH THE MINIMUM FUEL AS THE NEW FUEL POLICY WANTED. NOT BEING ABLE TO FOLLOW FUEL STATUS FOR THE REST OF THE FLT; TAKING INTO CONSIDERATION FUTURE ENRTE FUEL BURN AND ANY BAL PROBS OR LEAKS; WE DIVERTED TO DEN AS THE SAFEST DECISION FOR THAT MOMENT. CONTINUATION OF THE FLT TO SFO DID NOT SOUND LIKE THE BEST (OUR) JUDGEMENT. UNEVENTFUL NORMAL LNDG IN DENVER. EMER NOT DECLARED. ATC WAS TOLD WE WERE DOING THIS AS A PRECAUTIONARY.