Latency timer questions

[Vijay Chougule <vchougule@yahoo.com>]

Hello everyone,

I am doing a PCI master card. I have couple of
questions about the latency timer and ownership of the
bus.

1. If the gnt# is still asserted at the time at which
the Latency timer expires, can I continue doing the
burst until the gnt# signal is deasserted ?

2. In the real life systems (pentium class or other
workstations), what happens if I deassert the req#
signal immediately after gnt# is asserted for me ?
Will the arbiter in the system deassert the gnt#
signal and park the bus to some other agent (if at all
parking is implemented) ? Is there any disadvantage of
deasserting the req# signal signal immediately after
getting the gnt# signal even if I want to do a long
burst ?

Thank you in advance.

Vijay


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