AT91RM9200_PIOB_BASE
{AT91RM9200_PIOB_BASE, PID_PIOB},
#define PIOB_READ(_reg) *((volatile uint32_t *)(AT91RM9200_PIOB_BASE + (_reg)))
#define PIOB_WRITE(_reg, _val) do {*((volatile uint32_t *)(AT91RM9200_PIOB_BASE + (_reg))) = (_val);} while (0)