PORT_PJCR
__raw_writew(0x0000, PORT_PJCR); /* 00 00 00 00 00 00 00 00 */
__raw_writew(0x1000, PORT_PJCR); /* PORT J 1 = IRQ1,J 0 =IRQ0 */
__raw_writew(__raw_readw(PORT_PJCR) & 0x0003, PORT_PJCR);