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Maximum GPIF throughput
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RSKV

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Maximum GPIF throughput

vivenoma posted on 21 Dec 2012 2:29 AM PST
Senior Member
12 Forum Posts

What is the maximum achievable throughput of the GPIF bus if all 4 DMA threads are utilized in MULTI + AUTO mode?




Re: Maximum GPIF throughput

RSKV posted on 14 Jan 2013 07:41 PM PST
Cypress Employee
655 Forum Posts

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.



Re: Maximum GPIF throughput

MadMax_805 posted on 17 Jan 2013 10:35 AM PST
Member
10 Forum Posts

 What host controller was used when achieving the 400MB/s?



Re: Maximum GPIF throughput

RSKV posted on 17 Jan 2013 06:39 PM PST
Cypress Employee
655 Forum Posts

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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