ISR_BED
| ISR_GCAD | ISR_SAD | ISR_BED)
if (isr & (bit | ISR_BED))
if (isr & (ISR_BED | (bit & ISR_ALD)))
isr & (ISR_BED|ISR_SAD|ISR_IRF|ISR_ITE|ISR_ALD|ISR_SSD));
} else if (isr & ISR_BED) { /* Bus Error Detected */