cjb80

PCIe Questions

Discussion created by cjb80 on Apr 7, 2011
Latest reply on Apr 8, 2011 by nou

Based on my cursory research, it seems that it's reasonable to expect ~5.5 GB/s of real or so through PCIe 2.0 x16. Are these kinds of speeds full-duplex?  In other words, can I transfer 5.5GB/s on and off the device at once? (if so, is this supported?)

Additionally, if I have multiple devices is this throughput somehow reduced or divided between each device?

It looks like PCIe is a point-to-point architecture, so I would assume that each connection is independent.  Are the 'bus master' devices (DMA?) somehow limited on total peak throughput?

Thanks

Chris

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