User manual

PCI-1750 User Manual 18
3.4.6 Interrupt Flag Bit
The “interrupt flag” bit is a flag indicating the status of an interrupt. It is a readable
and writable bit. Read the bit value to find the status of the interrupt, write “1” to this
bit to clear the interrupt. This bit must be cleared in the ISR to service the next incom-
ing interrupt.
Table 3.4: Interrupt flag bit values
F0 & F1 Interrupt status
Read 1 Interrupt
0 No Interrupt
Write 1 Clear Interrupt
0 Don’t Care