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USB Low-Full-High Speed Peripherals

Anil
New Contributor

I have referred the datasheet of CY7C65213 IC as they mentioned that it will support for RS232/RS422 and CY7C65213A supports for RS485 communication.Based on this information I have bought the CY7C65213A breakout board,it contains only two pins (TXD and RXD) for communication.But for RS422 communication has to need 4 datalines (TX+,TX-,RX+,RX-).In datasheet they mentioned two circuits for RS232 and RS485 only.

Can anyone share the circuit connection for RS422 to the CY7C65213 breakout board and clarify that breakout board supports which type of communiaction?

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1 Solution
MallikaK_22
Moderator
Moderator

Hi,

CY7C65213 supports single channel RS232/RS422 interface while CY7C65213A supports RS232/RS422/RS485 interfaces.

In CY7C65213, UART pins may be interfaced to industry standard RS232/RS422 transceivers whereas in CY7C65213A these UART pins may be interfaced to RS232/RS422/RS485 transceivers.

For USB to RS-422 conversion, a suitable transceiver has to be used. As a reference, the USB to RS232 converter application diagram in the CY7C65213 datasheet can be referred.

Best Regards,

Mallika

 

 

Mallika

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MallikaK_22
Moderator
Moderator

Hi,

CY7C65213 supports single channel RS232/RS422 interface while CY7C65213A supports RS232/RS422/RS485 interfaces.

In CY7C65213, UART pins may be interfaced to industry standard RS232/RS422 transceivers whereas in CY7C65213A these UART pins may be interfaced to RS232/RS422/RS485 transceivers.

For USB to RS-422 conversion, a suitable transceiver has to be used. As a reference, the USB to RS232 converter application diagram in the CY7C65213 datasheet can be referred.

Best Regards,

Mallika

 

 

Mallika

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Anil
New Contributor

Hi,

But RS422 need four datalines then how can we connect with two datalines.That breakout board have only two data lines(TXD&RXD).

Can you please share the wiring diagram for RS422 

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MallikaK_22
Moderator
Moderator

Hi,

The CY7C65213 board TX, RX is connected to the RS-422 transceiver TX-RX. The splitting is taken care of by the transceiver.

Capture.PNG

You can choose a suitable transceiver and study its datasheet to understand more about this.

Best Regards,

Mallika

Mallika
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