CY4601
CY4601 Datasheet
CY4601
| Part | Datasheet |
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CY4601 |
CY4601 (pdf) |
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| USB to Serial Reference Design CY4601 PRODUCT OVERVIEW With the growing popularity of USB as the method of choice for connecting peripheral devices to the personal computer, manufacturers are moving towards phasing out the legacy ports on PCs. Companies producing devices that use the RS-232 interface for exchange of data will soon have to find a new solution. Instead of altering the hardware design, application software and host drivers for a current design, consider the option of a drop-in replacement for the existing RS-232 interface. Cypress offers a complete solution for replacing a legacy serial interface with USB on an existing or new product with an easy migration path to a true USB device. The USB to Serial Reference Design is a single chip solution for seamlessly upgrading a serial interface to USB. On the host side we provide a custom Windows driver that provides serial port emulation. The driver can simultaneously emulate multiple RS-232 ports and allows complete control over the full range of baud rates, data byte lengths, stop bits and parity bits. On the peripheral side, firmware is provided for different USB microcontrollers to support a range of application throughput needs. The enCoRe parts support lower data rate applications while CY7C64013 handles higher data rate applications. We provide source code for all of the firmware and a Design Notes document describing the system architecture. Additionally the design includes Windows based applications for driver installation, serial data transmission testing with the driver, and peripheral testing without the custom driver. Cypress provides faster time-to-market and the lowest overall system cost with our USB to Serial Reference Design. • COM port emulation driver • No change to host application interface • Compatible with HID class driver • Easy migration to completely legacy free device • Single chip solutions • Reduces board space • Minimizes total cost • Multiple chips supported ! enCoRe 600-56K baud 800 bytes/sec ! CY7C64013 600-56K baud 4K bytes/sec • Match solution to cost and throughput needs • Supports RI, CD, RTS, CTS, DTR, and DSR • Compatible with legacy interface control and monitoring • Full control of baud rate, data bytes, stop bits and parity bits • USB Specification Compliant • All software is compatible with industry standards for low and full speed devices • Passes USBCheck Chapter 9, Chapter 11, and Hidview tests • Compatible with industry certification standards • Windows based test applications provided • Allows flexibility in testing of complete system or peripheral only • Driver support on Windows 98, 2000, Me, XP • Robust operating system support • Driver Installer application • Streamlines installation and reduces errors • Minimizes support requirements For ordering information contact your local sales representative. Call toll-free in the US 800 -858-1810, or visit our web site at SYSTEM DIAGRAM Peripheral Device Legacy serial port RS-232 cable USB to serial with Cypress USB Microcontroller USB cable Host PC Host application Legacy serial port COM port to USB driver Migration path from RS-232 to USB Phase 1 Transition quickly to USB with the Cypress USB to Serial design. Can be used as a long term solution if desired. Phase 2 The design allows stratightforward migration to the HID class driver supplied with the operating system, thus removing the need for custom driver support. Requires modification of existing software to communicate with a USB device instead of RS-232 Phase 3 Alter hardware architecture to communicate directly with USB chip in most efficient manner possible. Removes potential limitations of a serial interface. REFERENCE DESIGN KIT CY4601 The USB to Serial Reference Design kit is a complete resource for developers to utilize and customize in the development of their own product. Each kit includes • Complete documentation ! Design Notes for enCoRe and CY7C64013 ! Quick Start Guide • CD-ROM containing ! Firmware source code ! Documentation ! Serial port emulation driver ! Driver installation application ! Test applications ! Visual Basic example ORDER INFORMATION Note Modifications to the firmware will require the appropriate development kit and the necessary programming hardware. Please refer to the Cypress web site for a cross reference table of the appropriate hardware. REFERENCE DESIGN KIT PART NUMBER CY4601 BASE PART enCoRe CY7C64013 DEVELOPMENT KIT CY3654 Platform Board CY3654-PO5 Personality Board CY3654 Platform Board CY3654-PO3 Personality Board Note Untested sample firmware for the EZ-USB family is also included on the reference design kit CD-ROM. This firmware is compatible with the USB to Serial driver. It is provided as-is and can be used as a starting point to develop a serial device based on these parts. For ordering information contact your local sales representative. Call toll-free in the US 800 -858-1810, or visit our web site at |
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