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User Module Datasheet: USBUART Datasheet USBUART V 1.60 (CY8C24x94, CY7C64215, CY8CLED04, CY8CTST120, CY8CTMG120, CY8CTMA120, CY8C20396A, CY8C20496A/L, CY8C20646A/AS/L, CY8C20666A/AS/L, CY7C643xx, CYRF89235, CY8C24493) | Cypress Semiconductor

User Module Datasheet: USBUART Datasheet USBUART V 1.60 (CY8C24x94, CY7C64215, CY8CLED04, CY8CTST120, CY8CTMG120, CY8CTMA120, CY8C20396A, CY8C20496A/L, CY8C20646A/AS/L, CY8C20666A/AS/L, CY7C643xx, CYRF89235, CY8C24493)

Last Updated: 
Mar 25, 2015
Version: 
1.60

Features and Overview

  • The USBUART device uses a USB interface to emulate a COM port.
  • UART-like high level functions are available on the PSoC device side.
     

Functional Description

Many embedded applications use the RS-232 interface to communicate with external systems such as PCs, especially when debugging. But in the PC world, the RS-232 COM port will soon disappear from most new computers, leaving USB as the replacement for serial communication. The simplest way to migrate a device to USB is to emulate RS-232 over the USB bus. The primary advantage of this method is that PC applications use the USB connection as an RS-232 COM connection, making it very simple to debug. This method uses a standard Windows® driver that is included with all versions Microsoft® Windows from Windows 98SE through Windows XP.