When using Deep Sleep with the LPC1114 I get a quiescent current of 1.4mA from my PCB if I use LPC_SYSCON->STARTERP0 = LPC_SYSCON->STARTERP0 | 0x1000; to set the wake up interrupt for GPIO1_0. When I don't enable the wake up interrupt I get 15uA which is what I would expect. I have spent months trying to get the sleep current low, and reading all the manuals and advice and trying example code has got me nowhere. It seems the issue is enabling the wake up interrupt. Does anyone have an answer?