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Chapter 4: Using the cpuModule 65
Figure 6 aDIO Match Mode
Strobe Mode
Another interrupt mode supported by aDIO is Strobe mode. This allows the strobe pin of the DIO connector
to trigger an interrupt. A low to high transition on the strobe pin will cause an interrupt request. The request
will remain high until the Clear Register is read from. Additionally, the Compare Register latched in the
value at Port 0 when the Strobe pin made a low to high transition. No further strobes will be available until
a read of the Compare Register is made. You must read the Compare Register, and then clear interrupts so
that the latched value in the compare register is not lost. To enter Strobe mode, set bits [4:3] of the
DIO-Control register to “01”.
Summary of Contents for cpuModules CMA24BT
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