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Master SPI as USART | Cypress Semiconductor

Master SPI as USART

Summary: 4 Replies, Latest post by MasterJings on 05 Feb 2013 06:53 AM PST
Verified Answers: 1
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Toms's picture
2 posts


I need to communicate to a peripheral device via 10MBit synchronous USART connection. Unfortunately there is no USART hardware in the PSoC5 device.

Is there any workaround?




user_98851887's picture
4 posts

Even i have the same Query . kindly confirm if PSoC 5 can support USART .

kiku's picture
Cypress Employee
64 posts


I have seen the following two explanations for USART on the internet:

1. There will not be any Start or Stop bits. Only data bits & the clock will be sent out. -> This is nothing but SPI.

2. There will be Start & Stop bits bu the clock will be sent only for data bits.


I am not sure which explanation is the right one. If you can give the right explanation, we can help you in explaining how to modify the existing component or creating a new component to get the functionality you are looking for.

rahulram's picture
Cypress Employee
115 posts

Hi every one,

USART is possible to be built on PSoC 5 as a custom component.  It will just require the use of few UDBs in doing that. Datapath inside the UDB is capable of doing this component. Please do get back here, incase you have any doubts in implementing.



MasterJings's picture
8 posts

Probably you are interested in this from PSOC Sensei:


Btw.: Do you really need 10Mbit? I'm just curious...





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