topic iMX7D : Connecting to LPDDR2 in i.MX Processors

iMX7D : Connecting to LPDDR2

koichisakagami — Mon, 22 Aug 2016 09:37:14 GMT

Dear community,
We have been developing our product with iMX7D.
I hope to connect a LPDDR2 to the iMX7D.

In Reference Manual IMX6SDLRM Rev. 2 , 45.4.5 LPDDR2 and DDR3 pin mux mapping,
it is described that the LPDDR2 and DRAM pin mux mapping for iMX6.

But , in the iMX7D Reference Manual the LPDDR2 and DRAM pin mux mapping is not defined.

[Question]
    Could you teach me the LPDDR2 pin mux mapping for iMX7 ?
    Or ,as DRAM I/O pad name and LPDDR2 functionality is consistent ,
    Is the pin mux mapping unnecessary ?

Best Regards,
Koichi Sakagami

Re: iMX7D : Connecting to LPDDR2

art — Tue, 30 Aug 2016 09:24:44 GMT

The signal mapping of the i.MX7D DDR bus interface is equal for both DDR3 and LPDDR2 memories, so, no separate pin mapping is required for the LPDDR2 memory.

Have a great day,
Artur

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Re: iMX7D : Connecting to LPDDR2

koichisakagami — Wed, 31 Aug 2016 05:40:45 GMT

Dear Artur san,
Thank you for your reply.

I got it.

Is the signal mapping of the i.MX7D DDR bus interface equal for LPDDR3 memory ,too ?

Best Regards,
Koichi Sakagami

Re: iMX7D : Connecting to LPDDR2

art — Wed, 31 Aug 2016 07:18:42 GMT

Yes.

Best Regards,

Artur