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Trans lati on Form ats B-34 AutoSite User Manual JEDEC Format, Code s 91 and 92 Introduction The JEDEC (J oint Electron Device Engineering Co uncil) forma t is used to transfer fuse and test vector data between the progr…

Translation Formats

AutoSite User Manual B-33

Texas Instruments SDSMAC Format, Code 90

Data files in the SDSMAC format consist of a start-of-file record, data

records, and an end-of-file record. See Figure B-17.

Each record is composed of a series of small fields, each initiated by a tag

character. The programmer recognizes and acknowledges the following

tag characters:

0 or K—followed by a file header.

7—followed by a checksum which the programmer acknowledges.

8—followed by a checksum which the programmer ignores.

9—followed by a load address.

B—followed by 4 data characters.

F—denotes the end of a data record.

*—followed by 2 data characters.

The start-of-file record begins with a tag character and a 12-character file

header. The first four characters are the byte count of the data bytes; the

remaining file header characters are the name of the file and may be any

ASCII characters (in hex notation). Next come interspersed address fields

and data fields (each with tag characters). If any data fields appear before

the first address field in the file, the first of those data fields is assigned to

address 0000. Address fields may be expressed for any data byte, but

none are required.

The record ends with a checksum field initiated by the tag character 7 or

8, a 4-character checksum, and the tag character F. The checksum is the

two's complement of the sum of the 8-bit ASCII values of the characters,

beginning with the first tag character and ending with the checksum tag

character (7 or 8).

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.

Figure B-17

An Example of TI SDSMAC Format

00050 7FDD4F

90000BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F400F

90010BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F3FFF

90020BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F3FEF

90030BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F3FDF

90040BFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFFBFFFF7F3FCF

Checksum

Tag Character

Byte Count

Filename

Load Address

End-of-File Record

Tag Characters

Data

Records

Checksum

LEGEND

Nonprinting Carriage Return, with optional

line feed and nulls determined by null count.

0089-4

Translation Formats

B-34 AutoSite User Manual

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

AutoSite User Manual B-35

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>