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copticjo
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re: PCI Express 4.0 drives to 16 GT/second
copticjo   7/19/2012 10:34:01 PM
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Are there any papers on the subject. I'm very surprised to not find any papers on PCI-Gen4. Only news releases.

Ryan Tennill
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re: PCI Express 4.0 drives to 16 GT/second
Ryan Tennill   11/30/2011 2:08:03 AM
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"The first two versions of PCIe used 8b/10b encoding, and thus had lower processing overhead." "Version 4.0 will use the same 128b/130b encoding..." I was under the impression that going to 128b/130b was a rather significant reduction in overhead compared to 8b/10b or is this referring to the scrambling/descrambling that is applied to the data? After all the 2 bits in an 8b/10b encoding is 20% while 128b/130b is 1.5%.

rick merritt
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re: PCI Express 4.0 drives to 16 GT/second
rick merritt   11/29/2011 4:55:51 PM
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What do you see on the horizon for pc boards with optical interconnects?



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