AN85514 - Designing a USB-to-RS232 Solution Using Cypress's USB-UART LP Bridge Controller | Cypress Semiconductor
AN85514 - Designing a USB-to-RS232 Solution Using Cypress's USB-UART LP Bridge Controller
Cypress's USB-UART LP Bridge Controller (CY7C65213) brings plug-and-play USB connectivity to legacy UART peripherals. AN85514 describes how to implement a USB-to-RS232 solution using CY7C65213.
USB technology is ubiquitous and remains the interface of choice between PCs and peripherals/systems. Modern PCs have only USB ports to connect external peripherals/systems. Many systems still use the legacy serial port (UART/RS232) as the interface, which appears as a COM port on the PC. To enable these systems to connect to modern PCs, a “bridge” chip to convert the UART protocol to USB is required.
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