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Interrupt types

Vme knows two different types of interrupters, ROAK and RORA.

ROAK (Release On Acknowledge) interrupters release their interrupt request signal during the IACK (interrupt acknowledge) cycle on the Vme bus. This type of interrupters is supported.

RORA (Release On Register Access) interrupters in addition want a module specific register access to remove the interrupt request signal from the bus. This type of interrupter is now also supported, but still in the testing phase.

The driver handles the IACK cycles automatically (in case of ROAK or RORA-ArwvmeRoraByHandler) and appends information about occurred interrupts in a list with a length of maximum ARWVME_MAX_INTS_QUEUED entries (defined in driver/arwvme.h)


next up previous
Next: How to program and Up: Interrupts Previous: Configuring the adaptor


Fri Jul 2 08:09:45 MEST 1999