USB has long been the interface of choice between PCs and their peripherals. However, many legacy PCs still use an RS232 serial interface— in some cases referred to as a UART interface—to communicate with their peripherals.

Cypress’s USB-to-UART Bridge Controller enables seamless connectivity between USB and UART devices. It is a low-power, single-chip, plug-and-play solution that is easy to design and reuses existing application software and firmware—accelerating time to market.

Standard 8051 Interrupts:

• IE0(INT0): External Interrupt0
• IE1(INT1): External Interrupt1
• RI_0 & TI_0: USART1 Interrupt
• TF0: Timer0 Overflow
• TF1: Timer1 Overflow

Additional EZ-USB interrupts:

• TF2: Timer2 Overflow
• PF1: Wake up pin(WU2)
• RI_1 & TI_1: UART 1 Transmit and receive
• USBINT(INT2): USB specific Interrupt
• I2CINT(INT3): I2C Bus Interrupt
• IE4(INT4): External Interrupt 4
• IE5(INT5): External Interrupt 5
• IE6(INT6): External Interrupt 6
   

For more, see pdf.

Introduction

Cypress's EZ-USB® FX3 is the next-generation USB 3.0 peripheral controller, providing integrated and flexible features. FX3 has a fully configurable, parallel, general programmable interface called GPIF II, which can connect to any processor, ASIC, or FPGA. It provides easy and glue less connectivity to popular interfaces, such as asynchronous SRAM, asynchronous and synchronous address data multiplexed interfaces, and parallel ATA. FX3 has an embedded 32-bit ARM926EJ-S microprocessor for powerful data processing and for building custom applications. It implements an architecture that enables 375-MBps data transfer from GPIF II to the USB interface. 

EZ-USB® FX3 is the next generation USB 3.0 peripheral controller, providing highly integrated and flexible features that enable developers to add USB 3.0 functionality to a wide range of applications.

FX3 supports several boot options including booting over I2C, SPI, USB, Synchronous ADMux and Asynchronous SRAM interfaces. This application note describes the details of the different booting options for FX3.

The default state of the FX3 IOs during boot are also documented. The Appendix describes the step-wise sequence for testing the different boot modes using the FX3 DVK.

Introduction

USB is so commonplace that it has almost completely replaced other communication methods between peripheral devices and a PC. This holds true both for general-purpose devices, such as flash drives and mice, and special-purpose devices for specific applications. According to the standard USB 2.0 specification, USB peripherals do not communicate directly with one another; they may communicate only with a USB host, which fully controls data traffic on the bus. The Cypress EZ-USB FX3 with integrated high-speed USB host controller, along with the USB function and On-The-Go (OTG) capabilities accomplishes two things: It retains the device functions and allows embedded systems to act as a USB host.

An FX2LP™-FPGA interface is implemented to add High-Speed USB connectivity for FPGA based applications, such as data acquisition, industrial control and monitoring, and image processing. The FX2LP acts in Slave-FIFO mode and the FPGA acts as the master. This Application Note also gives a sample FX2LP firmware for Slave-FIFO implementation and a sample VHDL and Verilog project for FPGA implementation.

 

Introduction

The EZ-USB FX2LP is an excellent solution if you want to a high-performance high-speed USB to a design. In applications similar to a TV dongle, an MPEG2-TS to USB Bridge is critical. The EZ-USB FX2LP not only takes care of glueless logic, but also makes it easier for the designer to complete the design. This application note addresses the hardware connections and example firmware required to implement the MPEG2-TS interface using the Slave FIFO mode.

Introduction

HX2VL is the next-generation family of high-performance, low-power USB 2.0 hub controllers. The HX2VL has integrated upstream and downstream transceivers, a USB serial interface engine (SIE), USB hub control and repeater logic, and transaction translator (TT) logic. The HX2VL portfolio has Single-TT and Multi-TT versions, lowcost options with high performance.

Overview

Cypress EZ-USB FX2LP™ is one of the most popular programmable high-speed USB controllers in the industry. This application note has two parts.

Host application: This application is built on the Microsoft Visual C# 2008 platform. The application communicates to BULK IN and BULK OUT endpoints of  FX2LP™ using the interfaces given by CyUSB.dll. The CyUSB.dll, in-turn communicates internally with the Cypress USB driver CyUSB.sys, for talking to these endpoints.

Target firmware: This describes related firmware residing on target, which transfers the data sent from the host application on BULK OUT endpoint to the BULK IN endpoint, for sending it back to the host application in loopback fashion.

Overview

AN70486 describes a host application built on the Microsoft Visual C++ 2008 platform that uses CyUSB.dll to communicate with Cypress USB driver, CyUSB.sys. The host application communicates with the BULK IN and BULK OUT endpoints of FX2LP, using the interfaces provided by the APIs of CyUSB.dll. The CyUSB.dll in-turn communicates internally with Cypress USB driver (CyUSB.sys), for talking to these endpoints. This host application implements the transfer only with devices that pass the particular VID/PID identification. The example device used in this application note is the Bulkloop device. The firmware that is attached along with this application note causes a loop back of data inside the device. Thus this host application, with the attached Bulkloop device, demonstrates the loopback of data.

Introduction

West Bridge Benicia is a USB 3.0 SuperSpeed peripheral controller optimized for sideloading and streaming applications. West Bridge Benicia supports the latest removable and embedded mass-storage devices such as SD 3.0 (SDXC with UHS-I) and eMMC 4.41. It also boosts the USB data rate from 480 Mbps (High Speed) to 5 Gbps (SuperSpeed).

To successfully integrate this high-performance peripheral in a system, the designer should consider the provided configuration and layout recommendation and ensure correct system operation.

Introduction

The GPIF is an 8-bit or 16-bit programmable parallel interface that helps to reduce system costs by providing a glueless interface between the EZ-USB FX2LP™ and an external peripheral. It is a highly configurable and flexible piece of hardware that allows you to get the most out of your USB 2.0 design. GPIF fits into applications that need an external mastering device to exchange information.

AN74505 describes a host application built on the MAC OS platform that uses libusb. The host application (Cocoa Application) communicates with the BULK IN and BULK OUT endpoints of FX2LP, using the interfaces provided by the APIs of libusb. This host application implements the transfer only with devices that pass the particular VID/PID(=0x04B4/0x1004) identification.

Cypress also provides a Cypress SuperSpeed Suite for MacOS platforms, which includes a Cypress API wrapper based on LibUSB. The Wrapper library for MacOS can be downloaded from this link http://www.cypress.com/?rID=57990

Introduction

The GPIF is a programmable parallel interface that provides a glue-less interface between the EZ-USB® FX2LP™ and an external peripheral. GPIF enables various applications that require FX2LP to function as a master to an external device over a parallel interface. A wide variety of protocols can be implemented using GPIF like EIDE/ATAPI, printer, parallel port (IEEE P1284), Utopia, etc. This document describes the architecture and implementation of FX2LP GPIF, and discusses application usage models and debugging strategies. One end-to-end example is also discussed to reinforce GPIF concepts and provide a concrete design example.

This document and the accompanying software demonstrate how simple user-mode, using the libusb, Linux applications can communicate directly to EZ-USB based USB devices, without any need to write a kernel device driver. The author assumes the reader has a working knowledge of Linux and gone through FX2LP documentation as well as windows based FX2LP tools/utilities.

Cypress also provides a CyUSB Suite for Linux platforms, which includes a Cypress API wrapper based on LibUSB. Host application examples are also provided. The FX3 SDK for Linux, v1.2.1 can be downloaded from this link http://www.cypress.com/?rID=57990

1. Assist in migrating existing EZ-USB FX2 (also referred to as FX2 in this application note) applications to EZ-USB FX2LP (also referred to as FX2LP in this application note).
2. Assist the designers familiar with FX2 in creating FX2LP based applications.

A summary of the main items to consider while replacing the FX2 in an existing application with an FX2LP part is provided. The changes are categorized into required essential changes for all FX2LP applications migrating from FX2 and other applications based changes that might be required in your application due to additional enhanced feature in FX2LP.

"The content of this application note is now combined with AN75705 - Getting Started with EZ-USB® FX3™. Please refer to AN75705 - Getting Started with EZ-USB® FX3™"

The 56-ball VFBGA version of the FX2LPTM(CY7C68013A) or FX2LP18(CY7C68053) USB microcontroller chips is a smaller package version of the QFN package. The 56-ball package meets the needs of space sensitive printed circuit board (PCB) designs. Please visit CY3687 MoBL-USB FX2LP18 development kit webpage www.cypress.com/go/cy3687. Install the kit contents. Refer to /Hardware directory for reference Gerber and PCB layout files and /Documentation directory for guidelines on PCB layout.

• Three modes of operation of the FX1/FX2LP
• Endpoint Configuration and Multiple Buffering
• Three Domains that form the basic component of the FIFO architecture
• Arming and committing endpoint buffers
• Endpoint operation in manual vs. auto mode

This application note presents the features and the resources available to speed EZ-USB NX2LP-Flex™ based design from concept to production.

This application note demonstrates a technique for dynamically configuring a Field Programmable Gate Array (FPGA) over USB using EZ-USB FX2LP, a high-speed USB peripheral controller. Once the FPGA is configured, FX2LP can act as a high speed data-path between the USB host and the FPGA. This capability of FX2LP(CY7C68013A) helps FPGA based USB applications like logical analyzers, oscilloscopes, image processing and high-speed data acquisition.

The EZ-USB® family of chips has an 8051 core and uses the standard 8051 instruction set. However, it has a few enhancements compared to the standard 8051. This application note describes firmware optimization methods in EZ-USB. Some of these methods are common for any processor and some specific to the 8051 core of EZ-USB.

This application note discusses the necessary information for you to use a WirelessUSB(TM) LP radio in a product intended for the Japanese market. WirelessUSB based systems require a certification to market the product to make certain that it meets international regulations and national laws. This application note serves as a reference point in selecting WirelessUSB LP Radio for your application needs. The use of a Cypress radio chip and its suitability for Japanese product development is demonstrated by providing the compliance data on a reference development kit.

When product designers use reference designs as a basis for their own projects, they typically modify or enhance the original designs. Unfortunately, these modifications can cause a considerable decline in performance. This application note describes parameters that can affect WirelessUSB system performance. It also explains how to evaluate these parameters within your own wireless product design.

Application Note "AN52970 - Windows Hardware Quality Labs (WHQL) Signing Procedure for Customer Modified Cypress USB Driver Files" not available now.

Please review knowledge base article in this link to learn about "Windows Hardware Certification Process for Customer Modified Cypress USB Driver Files".

The Texas Instruments OMAP1710 Multimedia Processor is a low-power, highly-integrated hardware and software platform designed to meet the application processing needs of next-generation embedded devices.The OMAPTM platform enables OEMs and ODMs to quickly bring to market devices featuring rich user interfaces, high-processing performance, and long battery life through the maximum flexibility of a fully-integrated mixed-processor solution.The OMAP1710 is primarily targeted at mobile communications applications using WLAN802.11x, Bluetooth, GSM, GPRS, EDGE, CDMA and other proprietary wireless standards. The processor provides video and image processing (MPEG, JPEG, etc.), advanced speech/audio processing, graphics and video acceleration, generalized web access and data processing.The OMAP1710 Multimedia Processor supports External Memory Interface (EMIF) that readily connects to Cypress asynchronous Dual-Ports. This application note describes the wiring, EMIF register settings, and other design considerations for connecting the OMAP1710 Multimedia Processor to the 1/4 Mb Cypress MoBL(TM) Dual-Port (CYDM256A16-55). The same design can be used in interfacing the OMAP1710 Multimedia Processor to other Cypress MoBL Dual-Ports in the x16 configuration, such as the CYDM128A16 and CYDM064A16.

The Cypress CY7C65620 and CY7C65630 USB 2.0 hubs are high performance, low cost solutions for USB. The CY7C656xx USB 2.0 hubs integrate 1.5 kO upstream pull-up resistors for host notification. All downstream 15 kO pull-down resistors and series termination resistors are also integrated by the hubs on all upstream and downstream D+ and D- pins. This results in system cost optimization by providing built in support for the USB 2.0 specification.

This application note explains how to interface Cypress EZ-USB® controller to a Samsung MuxOneNand. It includes a complete API library with source code, helps to integrate MuxOneNand support to any Cypress High Speed USB controller based systems.

Compatible development kits include EZ-USB HX2LP(TM) USB 2.0 2-Port Hub Reference Design Kit CY4605 and EZ-USB HX2LP(TM) USB 2.0 4-Port Hub Reference Design Kit CY4606.

The appnote applies to Tetrahub, CY7C65640A as well.