Dear Sir or Madam,
Hello.
My customer would like to use the uSDHC interface with SDR-104 mode.
This mode is very fast speed (104 MB/s max).
Do you have Layout guide line for uSDHC with SDR104 mode in i.MX6?
BR,
Keita
Solved! Go to Solution.
Hi Keita
i.MX6 User Guide does not provide special recommendations
for SDR-104 mode layout. However one can use sect.
3.12 Impedance signal recommendations IMX6DQ6SDLHDG and
sect.6 SD/MMC/SDIO Card AN4215 i.MX28 Layout Guidelines
(given also for double data rate mode).
Best regards
igor
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Hi Keita
i.MX6 User Guide does not provide special recommendations
for SDR-104 mode layout. However one can use sect.
3.12 Impedance signal recommendations IMX6DQ6SDLHDG and
sect.6 SD/MMC/SDIO Card AN4215 i.MX28 Layout Guidelines
(given also for double data rate mode).
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
Hi Igor,
Thank you for your reply.
I found the below description on HW Design Checking List for i.MX6DQSDL
"50Ω impedance control"
"Match Clock and Data signals ± 50 mils"
Is it possible to reference above descriptions, too?
Best Regards,
Keita
Hi Keita
yes one can also use this document too, as
"summary based on IMX6DQ6SDLHDG and our supporting experience"
Best regards
igor