2500_Users_Manual.pdf - 第365页

Trans lation Fo rmats ProM aster 25 00 User Manua l D-3 5 JEDEC Format, Code s 91 and 92 Introduction The JEDEC (J oint Elect ron Device Eng ineering Coun cil) format is used to transfer fuse and test vector data between…

Translation Formats

D-34 ProMaster 2500 User Manual

Data records follow the same format as the start-of-file record but do not

contain a file header. The end-of-file record consists of a colon (:) only.

The output translator sends a CTRL-S after the colon.

Translation Formats

ProMaster 2500 User Manual D-35

JEDEC Format, Codes 91 and 92

Introduction

The JEDEC (Joint Electron Device Engineering Council) format is used to

transfer fuse and test vector data between the programmer and a host

computer. Code 91 is full format and includes all the data fields (such as

note and test fields) described on the following pages. Code 92 is the

Kernel, or shorter, format. The JEDEC Kernel format includes only the

minimum information needed for the programming; it does not, for

example, include information fields or test vector fields. Prior to

transferring a JEDEC file, the appropriate Logic device must be selected.

JEDEC’s legal character set consists of all the printable ASCII characters

and four control characters. The four allowable control characters are

STX, ETX, CR (RETURN), and LF (line feed). Other control characters,

such as ESC or BREAK, should not be used.

Note: This is Data I/O Corporation’s implementation of JEDEC Standard 3A.

For a copy of the strict standard, write to:

Electronic Industries Association

Engineering Department

2001 Eye Street NW

Washington, D.C. 20006

BNF Rules and

Standard Definitions

The Backus-Naur Form (BNF) is used in the description here to define the

syntax of the JEDEC format. BNF is a shorthand notation that follows

these rules:

:: = denotes “is defined as.”

Characters enclosed by single quotes are literals (required).

Angle brackets enclose identifiers.

Square brackets enclose optional items.

Braces {} enclose a repeated item. The item may appear zero or more

times.

Vertical bars indicate a choice between items.

Repeat counts are given by a :n suffix. For example, a 6-digit number

would be defined as:

<number> :: = <digit>:6

Translation Formats

D-36 ProMaster 2500 User Manual

For example, in words the definition of a person’s name reads:

The full name consists of an optional title followed by a first name, a

middle name, and a last name. The person may not have a middle name,

or may have several middle names. The titles consist of: Mr., Mrs., Ms.,

Miss, and Dr.

The BNF definition for a person’s name is:

<title> :: = ‘Mr.’ | ‘Mrs.’ | ‘Ms.’ | ‘Miss’ | ‘Dr.’

The following standard definitions are used throughout the rest of this

document:

<digit> :: = ‘0’ | ‘1’ | ‘2’ | ‘3’ | ‘4’ | ‘5’ | ‘6’ | ‘7’ | ‘8’ | ‘9’

<hex-digit> :: = <digit> | ‘A’ | ‘B’ | ‘C’ | ‘D’ | ‘E’ | ‘F’

<binary-digit> :: = ‘0’ | ‘1’

<number> :: = <digit> {<digit>}

<delimiter> :: = <del> {<del>}

<space> :: = <ASCII 20 hex> | “

<valid character> :: = <printable character> | <carriage return> |

<field character> :: = <ASCII 20 hex... 29 hex> | <ASCII 2B hex... 7E

hex> | <carriage return> | <line feed>