# What is the difference between HS\_UART0 and LP\_UART0?

**URL:** https://forum.amebaiot.com/t/what-is-the-difference-between-hs-uart0-and-lp-uart0/41
**Category:** Hardware
**Tags:** rtl872xd
**Created:** [December 17, 2020, 10:22am UTC](https://forum.amebaiot.com/t/what-is-the-difference-between-hs-uart0-and-lp-uart0/41 "2020-12-17T10:22:23Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![JeroenT](https://avatars.discourse-cdn.com/v4/letter/j/41988e/32.png) [@JeroenT](https://forum.amebaiot.com/u/JeroenT)
#### Post date: [December 17, 2020, 10:22am UTC](https://forum.amebaiot.com/t/what-is-the-difference-between-hs-uart0-and-lp-uart0/41/1 "2020-12-17T10:22:23Z")

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# What is the difference between HS\_UART0 and LP\_UART0?

Hi all, I am using RTL8721 and I wonder what is the difference between HS\_UART0 and LP\_UART0?

Can I wake up the processor from sleep using HS\_UART0?

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### Author: ![xidameng](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/xidameng/32/18_2.png) [@xidameng](https://forum.amebaiot.com/u/xidameng)
#### Post date: [December 17, 2020, 10:26am UTC](https://forum.amebaiot.com/t/what-is-the-difference-between-hs-uart0-and-lp-uart0/41/2 "2020-12-17T10:26:20Z")

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hi  
You may refer to user manual/application guide for the UART comparison, but as for wake from sleep, currently only LOG\_UART can do that, hope this answers your question.