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What is the maximum achievable throughput of the GPIF bus if all 4 DMA threads are utilized in MULTI + AUTO mode?
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Hi,
If the USB side application is fast enough then the maximum speed that you can achieve using GPIF II is close to 400MBps.
Regards,
sai krishna.
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What host controller was used when achieving the 400MB/s?
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Hi,
I don't think we have done any measurements with the configuration that you are looking for.
But as you know the GPIF II interface can run at 100MHz, with 32-bit data bus (400MBps).
The practical max speed that we have seen from GPIF to USB side is 357MBps. refer to following application note:
http://www.cypress.com/?rID=51581
Win7 64-bit PC with an Intel Z77 Express Chipset is used to take these measurements.
Regards,
sai kirshna.
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Please refer to the following application note to find out the host controller that gave maximum performance:
AN86947 - Optimizing USB 3.0 Throughput with EZ-USB® FX3™
Thanks,
Sai Krishna.