Hello,
I need to redesign an i.MX6 Dual design, pursuing to lower costs with only 2 DDR3 ICs instead of 4 in the original design.
Due to cost reasons (my main target), this is cheaper than jumping to LP-DDR2 memories.
Also due to SW reasons, as far as I know, I need to stick to i.MX6 Dual device.
The question is: Can I leave DQ[32-64] and their respective DQS signals disconnected in order to use a true 32-bit memory bus in the i.MX6 Dual? or they (DQ[32-64]) should be terminated somehow (33 to 50 ohms Pullup or pulldown or whatever)?
Thanks
解決済! 解決策の投稿を見る。
Hello Rafael,
please refer to the following threads:
https://community.nxp.com/message/591423
https://community.nxp.com/message/500229
Best Regards,
Jan
Hello Rafael del Rey,
Please look at the threads suggested by Jan for more details. Unused pins of the DDR controller may be left floating if not used.
Regards,
Hello Rafael,
please refer to the following threads:
https://community.nxp.com/message/591423
https://community.nxp.com/message/500229
Best Regards,
Jan