#define P2SEL_PRI3P1_MASK (1 << 6)
#define P2SEL_PRI2P1_USART1 (0 << 5)
#define P2SEL_PRI2P1_TIMER3 (1 << 5)
#define P2SEL_PRI3P1_MASK (1 << 6)
#define P2SEL_PRI2P1_USART1 (0 << 5)
#define P2SEL_PRI2P1_TIMER3 (1 << 5)
#define P2SEL_SELP2_0_GPIO (0 << 0)
#define P2SEL_SELP2_0_PERIPHERAL (1 << 0)
#define P2SEL_SELP2_0_MASK (1 << 0)
#define P2SEL_SELP2_0_GPIO (0 << 0)
#define P2SEL_SELP2_0_PERIPHERAL (1 << 0)
#define P2SEL_SELP2_0_MASK (1 << 0)