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1CY 365 0
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PRELIMINARY
CY3650/CY3651
USB Developer's Kit
USB Development System on the PC includes:
* * * * * * * * * * * USB development board Wall transformer power supply (+6V DC, center negative) USB cable RS-232 serial cable 9-pin male to 25-pin female adapter for RS-232 cable Registration Card USB Development System User's Guide USB Development System Software Guide USB Development System Software (3 disks) CYASM Assembler software (1 disk) Example USB application software included on Assembler disk registers and data RAM. In this mode, firmware can be implemented in on-board EPROM, or downloaded to program RAM. The RAM option provides a quick and easy method for testing firmware revisions. There is also a stand-alone mode which allows portable system operation without the PC attached. In this mode, user firmware is programmed in an EPROM, and only power need be applied to produce a fully operating emulated USB chip. Additionally, the board may be connected to a logic analyzer to facilitate full trace capability and complex breakpoints.
Features
* Full development and debug environment for Cypress Universal Serial Bus Controllers: -- Real-time, full-speed emulation -- Software breakpoints -- Single stepping -- Register, RAM, I/O display/modification * Debug environment operates without firmware modification * User code can be run from on-board EPROM or RAM * Stand-alone operation requires only power connection * Access to key microcontroller internal signals to enable trace and complex breakpoints * USB Specification Version 1.1 compliant, 1.5 Mbps speed * Emulator Board Support for Cypress USB IC family: * CY3650 -- CY7C63000/1, 20-pin DIP/SOIC,Windowed DIP -- CY7C63100/1, 24-pin SOIC, Windowed DIP -- CY7C63200/1, 18-pin DIP, Windowed DIP * CY3651 -- CY7C63410/1/2, 40-pin PDIP/48-pin SSOP -- CY7C63413, 40-pin PDIP, 48-pin SSOP, 40-pin Windowed DIP -- CY7C63510/1/2, 48-pin SSOP -- CY7C63513, 48-pin SSOP, 48-pin Windowed DIP Logic Analyzer (Optional) Target System RS-232 To Serial Port
USB Development System
Power Supply
PC
Development Board
Typical USB Development Environment
Introduction
The Cypress USB Developer's Kit is a powerful tool that enables customers to develop USB hardware and firmware with emulated Cypress USB ICs. The development system can be run in two modes. In the typical development system environment, the board is controlled through a PC-based interface. Software running on the PC facilitates debugging through breakpoints, single stepping, and display and modification of Cypress Semiconductor Corporation * 3901 North First Street * San Jose * CA 95134 * 408-943-2600 October 1996 - Revised July 1997
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PRELIMINARY
CY3650/CY3651
The Program RAM allows users to download code into on-board memory. This provides a quick and easy mechanism for firmware modification. The firmware can be modified after download by changing individual bytes of code through the debug interface. The CY3650 board supports program memory sizes up to 4 KB and the CY3651 board supports program memory sizes upto 8 KB; consult the data sheet of the actual target device for the ROM size contained in the IC. For stand-alone operation, user firmware can be burned into the supplied UV-erasable EPROM, allowing for operation without the PC attached. USB Interface
Power Supply
Development Board
Target System
Stand-Alone Environment Hardware Installation
The development system is simple to install and get running. An enclosed 110 VAC wall transformer supplies power to the board. (Alternatively, a lab power source can be used.) Once the included software is installed on a Windows 3.1 or Windows `95 PC, an RS-232 cable connects the board to that PC to provide a full debug and monitoring environment. The cable and adapters support both a 9-pin and a 25-pin serial port on the PC.
The CY3650 and CY3651 development boards support the low-speed (1.5 Mbps) USB mode, with a 1.5-k pull-up resistor to +3.3V on the D- line for proper operation. The USB serial interface protocol engine contains the functions commonly referred to as "Serial Interface Engine" and "Serial Interface Logic" in USB literature. This provides full functionality for connecting to a USB bus as a low-speed device, including endpoint control and automatic NAKing. I/O Port Operation The general-purpose I/O ports on the board all operate identically. As outputs, the ports provide either a (removable) weak pull-up, or a strong pull-down. During a read operation, the digital state of all bits of each port are read together. All bits also have the capability to serve as interrupt inputs, as described in the device data sheets. The versatile 4-bit current-sink DAC per pin, available in many Cypress USB family ICs, is not implemented on the board. Support is available for customers who wish to fully emulate this IC feature Note : The input thresholds are lower (1.5 V) for the development board than the USB parts (45%-65% VCC).
Functional Overview
A block diagram of the development board is shown below, illustrating the major system components and the user interfaces. The microcontroller, USB serial interface protocol engine, and general purpose I/O logic are contained in FPGAs. The board supports a family of Cypress USB ICs, with varying amounts of on-chip EPROM, RAM, and I/O. Consult the individual device data sheets for details of the IC being emulated.
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PRELIMINARY
CY3650/CY3651
CY3650/51 Development Board Functional Block Diagram
CS
Program ROM 8K x 8 Program RAM 8K x 8
Switch Options
MicroController
CS
Data RAM 256 x 8
Reset
S2
USB Serial Interface Protocol
+5V +3.3V
USB Transceiver
USB D+ D- Port0
Power In
J13
Voltage Regulators UART
Engine
Ports 2&3 for 3651 only
RS-232 To/From PC Serial Port
J6
Port Transceivers
Port1 Port2 Port3
Signal Access
The development board contains connectors to internal microcontroller signals and to the emulated I/O pins. A target cable can be made by the user for the appropriate IC being emulated.
The software runs under Windows 95 or Windows 3.1. The only setting that the user needs to provide is the proper COM port for communication on the serial port and which development board is being used.
Assembler
An assembler, which also runs on the PC, is included. The assembler provides error checking and produces downloadable object code as well as a list file. The assembler supports USB-specific data types, speeding the development process.
Debug/Monitor Software
The developer's kit software provides a PC interface for debug control of the microcontroller and all memory and registers. The debug/monitor function is implemented in hardware, so modification of the user firmware is not required. The software allows read/modify access to the following: all microcontroller internal registers (such as accumulator and program counters), data RAM, program RAM (or non-modifiable EPROM), and all I/O registers. The system allows for multiple breakpoints and single stepping. At any breakpoint, all requested data fields are automatically updated, and the list file tracking moves to the current program line. Figure 1 shows the debug software window in a typical application.
Ordering information
Part Number CY3650 CY3651 Description USB Developer's Kit USB Developer's Kit
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PRELIMINARY
CY3650/CY3651
Figure 1. Debug Software Window in Typical Application Document #: 38-00553-B
(c) Cypress Semiconductor Corporation, 1997. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges.

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