CP2102 GMR PDF

Linux Installation 1. Once the appropriate drivers are installed for your system, the CP will look like a standard serial port. This document provides you with the necessary drivers along with installation instructions. Other Pololu products that use the CP 2. DO NOT attempt to double-click or run any of the files until you have extracted them. Open the temporary directory and run the appropriate executable.

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System Overview. Absolute Maximum Ratings. Global DC Electrical Characteristics. Pinout and Package Definitions. CP Device Drivers. USBXpress Drivers. Driver Customization. Driver Certification. Voltage Regulator. Relevant Application Notes.

No other external USB components are required. The CP UART interface implements all RS signals, including control and handshaking signals, so existing system firmware does not need to be modified. Absolute Maximum Ratings Table 1. This is a stress rating only, and functional operation of the devices at or exceeding the conditions in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

USB Pull-up Current should be added for total supply current. Max Units 3. A ? A Table 4. Pinout and Package Definitions Table 5. Power Out 3. See Section 9. An external source can initiate a system reset by driving this pin low for at least 15? This pin is the input to the on-chip voltage regu- lator. A 5 V signal on this pin indicates a USB net- work connection. The CP will enter Suspend mode when Suspend signaling is detected on the bus.

The CP exits the Suspend mode when any of the following occur: 1 Resume signaling is detected or generated, 2 a USB Reset signal is detected, or 3 a device reset occurs. If this behavior is undesirable, a strong pulldown 10 k? See Figure 6 for other recommended options. F Option 2 C2 0. Option 2: A 4. F capacitor can be added if powering other devices from the on-chip regulator. Option 3: Avalanche transient voltage suppression diodes should be added for ESD protection.

Option 4: 10 k? Figure 6. Typical Connection Diagram Rev. The UART is programmable to support a variety of data formats and baud rates. The data formats and baud rates available are listed in Table 7. Table 7. Additional baud rates are supported. It is also recommended to customize the serial number if the OEM application is one in which it is possible for multiple CPbased devices to be connected to the same PC.

A library of routines provided in the form of a Windows? DLL is also available. This library can be used to integrate the EEPROM programming step into custom software used by the OEM to streamline testing and serial number management during manufacturing. USB descriptors can be locked to prevent future modification. Only one set of drivers is necessary to interface with the device. No Serial Port protocol expertise is required.

Instead, a simple, high-level application program interface API is used to provide simpler CPx connectivity and functionality. Driver Customization In addition to customizing the device as described in Section 7, the drivers and the drivers installation package can be also be customized.

The certification means that the drivers have been tested by Microsoft and their latest operating systems XP and Vista will allow the drivers to be installed without any warnings or errors.

The customized drivers that are generated using the AN software are not automatically certified. They must go first through the Microsoft Driver Reseller Submission process.

Contact Silicon Laboratories support for assistance with this process. These configurations are shown in Figure 7 and Figure 8.

When enabled, the 3 V voltage regulator output appears on the VDD pin and can be used to power external 3 V devices. See Table 9 for the voltage regulator electrical characteristics. For this configuration, it is recommended that the REGIN input be tied to the 3 V net to disable the voltage regulator. This configuration is shown in Figure 9. The USB max power and power attributes descriptor must match the device power usage and configuration.

Note: It is recommended that additional decoupling capacitance e. F in parallel with 1. Table 9. Min Typ Max Units 4. This application note describes how to use the standard Windows COM port function to communicate with the CP and includes example code. This application note describes how to use the AN software to configure the Baud Rate aliasing feature on the CP devices.

Revision 1. Added additional supported operating systems on page 1. Changed VDD conditions of Tables 2 and 3 from a minimum of 2. Updated typical and max Supply Current number in Table 2. Removed tantalum requirement in Figure 6. Consolidated Sections 8 and 9. Added Section " Relevant Application Notes" on page CP Rev. Silicon Laboratories assumes no responsibility for errors and omissions, and disclaims responsibility for any consequences resulting from the use of information included herein.

Additionally, Silicon Laboratories assumes no responsibility for the functioning of undescribed features or parameters. Silicon Laboratories reserves the right to make changes without further notice. Silicon Laboratories makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Silicon Laboratories assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages.

Silicon Laboratories products are not designed, intended, or authorized for use in applications intended to support or sustain life, or for any other application in which the failure of the Silicon Laboratories product could create a situation where personal injury or death may occur.

Should Buyer purchase or use Silicon Laboratories products for any such unintended or unauthorized application, Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders.

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