Are interrupts available on the VME-1553?
Beginning with Version 34 of the host interface, the VME-1553 is fully compliant with VMEbus Interrupts. Prior to that revision, in some situations, if the VME-1553 had a pending interrupt request it might inadvertently reply to an Interrupt Acknowledge that was directed to another device.
The VME-1553 host interface version may be read in A16 space at byte offset 0x16. Consult the MIL-STD-1553 Universal Core Architecture Reference Manual for complete details.
A quick-turn, no-cost upgrade is available for users with older hardware. Contact the factory for return authorization.