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CP2130-Slide19

The CP2110 is a highly-integrated HID USB-to-UART bridge controller that provides a simple solution for updating RS-232 designs to USB using a minimum number of components and PCB space. The CP2110 includes a USB 2.0 full-speed function controller, USB transceiver, oscillator, one-time programmable ROM and an asynchronous serial data bus (UART) in a compact 4mm x 4mm 24-pin QFN package. The on-chip one-time programmable ROM may be used to customize the USB Vendor ID, Product ID, product description string, power descriptor, device release number and device serial number as desired for OEM applications. The CP2110 uses the standard USB HID device class which is natively supported by most operating systems. A custom driver does not need to be installed for this device. Windows applications communicate with the CP2110 through a Windows DLL which is provided by Silicon Labs.The interface specification for the CP2110 is also available to enable development of an API for any operating system that supports HID. The CP2110 UART interface implements all RS-232 signals, including control and hardware handshaking, so existing system firmware does not need to be modified. The UART capabilities of the CP2110 include baud rate support from 300 bps to 1 Mbps, hardware flow control, support for 5-8 data bits, five types of parity and RS-485 support. The device also features a total of 10 GPIO signals that are user-defined for status and control information. Six of the GPIO signals support alternate features including hardware flow control (RTS and CTS), a configurable clock output (24MHz to 47kHz), RS-485 transceiver control and TX and RX LED toggle. Support for I/O interface voltages down to 1.8V is provided via a VIO pin. An evaluation kit for the CP2110 (Part Number: CP2110EK) is available. It includes a CP2110-based USB-to-UART/RS-232 evaluation board, Windows DLL and test application, USB and RS-232 cables and full documentation.

PTM Published on: 2014-02-12