There could be an error on rev E and rev F schematics of LPCXpresso546 (OM13098) board.
The onboard SDRAM is a 128Mb Winbond's W9812G6JB-6I which has no A12 pin. However the schematics show as if such non-existing pin was connected, which only applies to a 256Mb chip, e.g Winbond's W9825Gxx.
Is this so? And for complete clarity, how should the 128Mb SDRAM be connected with the highest LPC546's external memory controller address pins EMC_A14, EMC_A13, EMC_A12 on corresponding BA1, BA0 and A11 ?
Attached image of SDRAM pins.