ADLINK Technology NuIPC cPCI-7300A User Manual page 48

8. The data saved in FIFO will transfer to system memory of your computer
directly and automatically by bus mastering DMA.
The operation flow is show as below:
The following figure shows the timing requirement of the handshaking mode
digital input operation.
DIREQ & DIACK Handshaking
Note: DIREQ must be asserted until DIACK asserts, DIACK will be asserted
until DIREQ de-asserted.
Operation Theory • 39