IBM MaxLoader manual Sum Check

Models: MaxLoader

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Sum Check

MaxLoader User’s Guide

V0007111100XXXNXXXHHLHXXN*

V0008111110XXXNXXXLHHLXXN*

C124E*<ETX>8646

STX The fuse map begins with an ASCII STX character (02 HEX)

Design Specification This item is user specific. While no format rules apply,

 

certain information, such as user’s name, company, design

 

date, part designation, revision and device part number,

 

should be entered. This field is illustrated by an asterisk

 

(*).

QP

Specifies the number of pins in the devices.

QF

Specifies the number of JEDEC fuses in the devices.

L

The fuse list fields contain the state of all fuse links in the

 

devices. The starting fuse number follows the L specifying

 

the field type. The fuse list that follows contains a zero (0)

 

for each intact link and a one (1) for each blown link. An

 

L field is generated for each product term in the device.

C

The checksum field contains the 16-bit sum of the link

 

stated in the 8-bit words.

ETX

The fuse map ends with an ASCII ETX character (03

 

HEX).

Sum Check

A 16-bit sum of the ASCII values of the characters from

 

STX to ETX inclusive. The sum check follows the ETX.

NOTE: LOGIC Compilers For PLD Devices: Software is available to help the engineer develop designs using PLDs. Software tools called logic assemblers or compilers translate a design file written in high-level language into a fuse pattern stored in a JEDEC file. JEDEC files are produced by almost all PLD development software’s and are accepted by the MaxLoader programmer. There are many commercial software packages available to help you design using PLDs.

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IBM MaxLoader manual Sum Check