topic Re: eMMC and LS1046a hardware design in Layerscape

eMMC and LS1046a hardware design

Ellu24 — Thu, 14 Apr 2022 02:31:47 GMT

Hello

I am doing a new hardware design using ls1046a and now trying to interface eMMC. I have some doubts regarding this.

1) I am planning to use emmc version 5.1 and whether it is supported by processor or not.

2) to which pin of the processor hardware reset and RCLK of the emmc should connect.

Re: eMMC and LS1046a hardware design

yipingwang — Mon, 18 Apr 2022 06:50:08 GMT

1. Please take a look at sections 19.1.1 and 19.1.2 of the LS1046A Ref Manual, these list features and protocols supported by the processor. It can work with eMMC 5.1 devices, but supports only eMMC 4.5 features.

2. Please refer to https://www.nxp.com.cn/docs/en/application-note/AN5252.pdf

Re: eMMC and LS1046a hardware design

Ellu24 — Mon, 18 Apr 2022 23:23:58 GMT

Thanks for the reply. can you please suggest me, where to connect the hardware reset of eMMC.

Re: eMMC and LS1046a hardware design

yipingwang — Thu, 28 Apr 2022 10:09:36 GMT

Please refer to "5.6.1 eSDHC pin termination recommendations" in AN5252.pdf.