PEN_IRQ_NUM
#define IMR_MPEN (1 << PEN_IRQ_NUM) /* Mask Pen Interrupt */
#define IWR_PEN (1 << PEN_IRQ_NUM) /* Pen Interrupt */
#define ISR_PEN (1 << PEN_IRQ_NUM) /* Pen Interrupt */
#define IPR_PEN (1 << PEN_IRQ_NUM) /* Pen Interrupt */