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Altera_Forum
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15 years ago

Need some help to use altdq and altdqs megafunction.

Hi, I am working on memory controller. In that data received from memory is edge aligned with clock. I want to give phase shift of incoming clock to 90 degree so that I can receive data cent...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

What FLASH device(s)? And which ALtera device?

I checked the Open NAND Flash Interface Specification, Revision 2.3. If you are using the Flash device in source synchronous mode you do have a DDR interface for writing and reading data. From the timing it looks like you have to use the DQS to read data into the FPGA, so you will need a DLL in your FPGA device, limiting the choice somewhat.