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Visitor
Visitor
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Registered: ‎06-16-2016

Zynq7000 and eMMc

There are two SDIO interfaces on Zynq7000 (SD0 and SD1).

From UG585, I can use MIO(2:8) to switch boot form QSPI, JTAG or SD.  Can the system only boot from SD0, not SD1?

I want to use SD card connect to SD0, and use eMMc chip to contect to  SD1. The system can boot from SD card, also can boot from  eMMc, how to configure MIO(2:8)?

In addition, if I use eMMc chip to contect to  SD1, only DATA0 ~ DATA3 should be connect to Zynq, DATA4~DATA7 should be floating,is it right?

 

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Xilinx Employee
Xilinx Employee
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Registered: ‎10-11-2011

The device boots only from SD memory card (SDIO 0, MIO pins 40-47).

eMMC as a primary boot mode is not supported in zynq-7000.

You can connect the eMMC using only the first 4 lines of data and use it a storage device.

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