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Altera_Forum
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12 years ago

1.8V I/O for DDR Controller? (BeMicro SDK MDDR)

The BeMicro SDK designs come with a Microtronix MDDR controller evaluation core. They use the 1.8V I/O standard, which allows them to use the thresh pin on the bank as the CS pin of the DDR. Wh...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

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Whenever I try to use another DDR controller, the 1.8V I/O standard causes a fitter error.

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There is more differences between regular DDR and mobile LPDDR than just the I/O standard.

This Micron note describes some of the issues, but long story short: just changing the I/O standard isn't going to result in a usable system.

http://www.micron.com/~/media/documents/products/technical%20note/dram/tn4615.pdf