By: Richard Cownie (tich.delete@this.pobox.com), August 28, 2007 10:28 am
Room: Moderated Discussions
Thanks for the great article.
First impressions:
1) It appears to have a lot of useful functionality
(especially the skew-compensation stuff which only
arrives in the AMD/HT world with HT3.0).
2) It seems to be rather complicated relative to HT,
and I would be nervous that this might lead to
higher latency. Probably hard to figure out the
real system latency until we see actual hardware.
3) They'll have to be careful about the link-recalibration.
It might sound reasonable to spend 10uS every 10mS
for recalibration of each link, but this could become
a serious problem if either you're doing something
real-time with hard latency limits, or you have a big
system with many links and the recalibration isn't
synchronized.
Anyway, good that CSI is getting closer to products.
First impressions:
1) It appears to have a lot of useful functionality
(especially the skew-compensation stuff which only
arrives in the AMD/HT world with HT3.0).
2) It seems to be rather complicated relative to HT,
and I would be nervous that this might lead to
higher latency. Probably hard to figure out the
real system latency until we see actual hardware.
3) They'll have to be careful about the link-recalibration.
It might sound reasonable to spend 10uS every 10mS
for recalibration of each link, but this could become
a serious problem if either you're doing something
real-time with hard latency limits, or you have a big
system with many links and the recalibration isn't
synchronized.
Anyway, good that CSI is getting closer to products.