NX-ST-CCM03-3504 データシートの表示（PDF） - NexFlash -> Winbond Electronics

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NX-ST-CCM03-3504

UNIVERSAL SERIAL FLASH DEVELOPMENT KIT

NexFlash -> Winbond Electronics 

NX-SFK-UNI

DESCRIPTION

The Universal Serial Flash Development Kit (SFK-UNI)

from NexFlash is a simple and cost effective solution for

system designers interested in learning about and design-

ing with NexFlash Serial Flash products. The SFK and

associated accessories provide the basic hardware and

software needed to develop with and program NexFlash

25Fxxx SPI and 26Fxxx NXS Serial Flash Memories and

removable Serial Flash Modules (SFMs).

The SFK-UNI hardware includes an SFM-Port Adapter

(that connects to the parallel port of a PC), a parallel port

cable, batteries, and sample SFMs and SFM connectors.

The SFM Port Adapter supports 3V and 5V, SPI and NXS

Serial Flash Modules. Optional Socket Cards can be

inserted into the SFM Port Adapter to support develop-

ment and programming of alternate packages such as

TSOPs, Smard Cards or custom modules. The Socket

Card also provides convenient test points for probing

signals during development. Using SFMs when prototyping,

rather than surface mount packages, can greatly simplify

the development process. SFMs can easily be moved

between the prototype and the SFK for quick interrogation

and modification.

The SFK-UNI software includes a well documented set of

“C” Source code routines, which serve as examples of the

25Fxxx and 26Fxxx data sheet command sequences such

as Read from Sector, Write to Sector, and Read Device

Information Sector. Special example routines such as

“Write/Verify” and “Write/Read with ECC” are also pro-

vided. These examples can be used as templates for user

firmware. The software includes “Makefile” support, allow-

ing the routines to be compiled with many popular “C” code

compilers from Borland, Microsoft, and GNU-GCC. Pre-

compiled executables are also included, enabling immedi-

ate access to the Serial Flash using a simple command-

line syntax within DOS or from a Windows DOS Shell.

The SFK-UNI software also provides several useful utili-

ties. A Device Formatter conditions the Serial Flash array

to its factory programmed state. The DIS Parser reads and

displays the Device Information Sector. A versatile Pro-

grammer allows for reading and writing binary files to and

from the Serial Flash using one of four formatting methods

with user specified addressing. Additionally, a Windows 95

driver is included that allows the PC Port Adapter to read

and write Serial Flash Memories and Modules as a floppy

drive.

SFM Port Adapter with Optional Socket Cards for use with TSOPs and other Packages

SFM CONTACT PAD

J1 R1

J2

J5

TO PC PORT ADAPTER

TOP VIEW

TEST POINTS

SPI NXS

VCC VCC

WP A2

DET

DET

J4

RB

HOLD

A0

CS1 A3-1

CS0 A3-0

SO SIO

S1

SCK

A1

J3

SCK

GND GND

NexFlash Technologies, Inc.

NX-ST-UNI-SFM REVA 5/99

28/24 TSOP II

SOCKET

28 TSOP I

SOCKET

OPTIONAL

DIP SOCKET

2

NexFlash Technologies, Inc.

PRELIMINARY NXK002B-0103

01/16/03

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