target burst accesses - resending

[Vijay Chougule <vchougule@altavista.com>]

Hi,

I am designing a 64-bit PCI target card. The card's internal register space and the data space are memory mapped. The only agent that does target accesses to the card is the host processor. I am trying not to support burst target read or write accesses to the card from the host processor. Since the card is memory mapped, I do not know whether there can be burst accesses to the card even if the software always accesses one word (32 bit at a time). In other words does the MIOC on the host system, convert the single word accesses (to consecutive locations) into burst accesses for any reasons ?

Is it a good idea to support only single word target accesses ? Would I need to do target disconnect after each word or the host processor will end the transaction after the first word ?

Thank you in advance,

Vijay

P.S. Sorry for the wrong subject earlier.


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