ADLINK PCIe-7360 - Manual (Page 84)

74 Operations
Figure 3-41: Example of Pattern Matching
3.11 COS (Change of State) Event
PCIe-7360 supports COS (Change of State) Event to monitor if
there is any change on the user-defined or any data lines.
When PCIe-7360 detects the change (either the input state
changes from low to high or from high to low) of data input lines,
PCIe-7360 will have the following response:
X
Generate a pulse signal of change detection event to AFI
X
Generate the change detection interrupt to host PC
X Latch the corresponding DI data into change detection latch
register