HP VXI E1432A - Manual (Page 101)

HP E1432A Interrupt Behavior
Interrupt Setup
The HP E1432A VXI module can be programmed to interrupt a host
computer using the VME interrupt lines. VME provides seven such lines,
and the HP E1432A module can be told to use any one of them (see
e1432_set_interrupt_priority).
The HP 1432A can interrupt the host computer in response to different
events. You can specify a mask of events on which to interrupt. This mask
is created by OR-ing together the various conditions that the you want.
The following table, copied from the e1432_set_interrupt_mask manual page,
shows the conditions that can cause an interrupt:
Interrupt Mask Bit Definitions
Define (in e1432.h) Description
E1432_IRQ_MEAS_WARNING Non-fatal measurement warning
E1432_IRQ_BLOCK_READY Block of data ready in FIFO
E1432_IRQ_MEAS_STATE_CHANGE Measurement state machine changed state
E1432_IRQ_TRIGGER Trigger ready for transfer to other modules
E1432_IRQ_OVERLOAD_CHANGE Overload status changed
E1432_IRQ_MEAS_ERROR FIFO overflow
E1432_IRQ_TACHS_AVAIL Raw tach-times available
E1432_IRQ_SRC_STATUS Source status change
HP E1432A User's Guide
The C-Language Host Interface Library
4-26
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