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Hi,

I have a question regarding UDMA protocol.

When a host terminates a UDMA transfer in progress by asserting
STOP, does the IDE drive treat that as termination of command
or does it consider that as a termination of that dma cycle?

In other words after STOP_ assertion will the drive assert a new
DMARQ? Or will it assume an error and update the status register
with the appropriate value.

I will appreciate it, if somebody could point out where in the specification 
this scenario is covered.

Thanks,

Steve






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