MCFEPORT_EPDDR
v = __raw_readb(MCFEPORT_EPDDR);
__raw_writeb(v & ~(0x1 << irq), MCFEPORT_EPDDR);
#if defined(MCFEPORT_EPDDR)
v = __raw_readb(MCFEPORT_EPDDR);
__raw_writeb(v & ~(0x1 << ebit), MCFEPORT_EPDDR);
return MCFEPORT_EPDDR;