# SD core whether to support SD 3.0 protocol?

**URL:** https://forums.sifive.com/t/sd-core-whether-to-support-sd-3-0-protocol/3180
**Category:** Freedom U500
**Created:** [December 25, 2019, 10:27am UTC](https://forums.sifive.com/t/sd-core-whether-to-support-sd-3-0-protocol/3180 "2019-12-25T10:27:27Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![andrewZhu](https://avatars.discourse-cdn.com/v4/letter/a/34f0e0/32.png) [@andrewZhu](https://forums.sifive.com/u/andrewZhu)
#### Post date: [December 25, 2019, 10:27am UTC](https://forums.sifive.com/t/sd-core-whether-to-support-sd-3-0-protocol/3180/1 "2019-12-25T10:27:27Z")

</div>

Hi,  
If the SD core file of “sdio.v” supports SD 3.0 protocol? The IO voltage of the SD card on my development board is 1.8 V. The card of the ATP company is required. Therefore, the ATP UHS-I microSD Memory Card must be used. This SD card only supports SD 3.0.  
Thanks you very much!