CY4601 Datasheet, PDF (1/2 Pages) Cypress Semiconductor – USB to Serial

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.
FEATURES
BENEFITS
• 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 2.0 Specification Compliant
• All software is compatible with industry standards
for low and full speed devices
• Passes USBCheck 3.2 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 www.cypress.com