It is mentioned in fcom 1 powerplant.
But it doesnt say what will happen if the n2 is higher than 50% In case of say.. A hot start.
AUTOMATIC STARTING
This sequence is under the full authority of the FADEC, which controls: - the start valve - the igniters - the fuel HP valves The FADEC : - detects a hot start, a hung start, a stall, or no light up - announces FAULT and identifies the fault in an ECAM message - runs an abort sequence if a start aborts on the ground when N2 < 50 % · closes the HP valve · closes the start valve · turns off ignition · cranks the engine after the start abort in order to clear out fuel vapors - ensures an automatic dry crank sequence of 30 seconds at maximum motoring speed.