A mechanical switch is connected to port 2.3 pin of the launchpad. Assume that P2.0 has a LED attached. If the switch in port 2.3 is pressed, interrupt signal will be generated. You must use the interrupt system. You are supposed to configure the port system. Fill in the blanks that is given next to registers below. All values must be written in capital hexadecimal values starting with "Ox", for example you are supposed to enter values like OXFO or OxOC. void main(void) { WDTCTL = WDTPW + WDTHOLD; PM5CTLO & ~LOCKLPM5; P2DIR |= P21E |= P2IES |= P21FG &= ~ _BIS_SR(LPM4_bits + GIE); }