LPC_READ_REG
val = LPC_READ_REG(chan, RGIO);
val = LPC_READ_REG(chan, RGIO);
val = LPC_READ_REG(chan, RGLVL);
val = LPC_READ_REG(chan, RGIO);
val = LPC_READ_REG(chan, RGIO);
val = LPC_READ_REG(chan, RGLVL);
val = LPC_READ_REG(chan, RGIO);
LPC_READ_REG(chan, RGLVL);
val = (LPC_READ_REG(chan, RGLVL) & GPIO_CLOCK) ? 1 : 0;
val = LPC_READ_REG(chan, RGIO);
LPC_READ_REG(chan, RGLVL);
val = (LPC_READ_REG(chan, RGLVL) & GPIO_DATA) ? 1 : 0;