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If the M-Module is enabled to interrupt, it asserts the INT line on the M-Module interface to the
Carrier when the last commanded relay operation in the FIFO has completed. For example, if
relays in only one row were instructed to move, the module asserts an interrupt after that one row
has been driven. If four rows were instructed to move (four writes to the FIFO--see note below),
then the module asserts an interrupt only after the completion of the fourth operation.
Note: The module asserts an interrupt after the relay drive time is complete (relay drive timer) and no
other operations have been stored in FIFO. The above example assumes the four writes are stored
in FIFO one after the other with very little time between the writes. If, in the above example, the
amount of time between writes is greater than the relay drive time (8 ms), the module would
actually interrupt four times--one interrupt after driving each relay.
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