CTRL_INTR_MASK
~CTRL_INTR_MASK);
ctrl &=~ CTRL_INTR_MASK;
uart_setreg(bas, UART_CTRL, ctrl & ~CTRL_INTR_MASK);
msc->intrm = ctrl & CTRL_INTR_MASK;
uart_setreg(bas, UART_CTRL, ctrl & ~CTRL_INTR_MASK);
ctrl = uart_getreg(bas, UART_CTRL) & ~CTRL_INTR_MASK;