Data I/O UniSite-xpi, User Manual

Page: 357 / 413

Glossary
UniSite-xpi User Manual Glossary-9
Simple Parameter Screen See Non-default parameters.
SmartPort A feature of the programmer that automatically detects and adjusts the
programmer to the presence of DCE/DTE protocol.
SOIC An acronym for Small Outline Integrated Circuit, a type of device
package. A rectangular device with gull-wing leads on the long sides.
SOP
is Small Outline Package. SO is Small Outline.
Source The place from which something comes. The “something” the source is
sending is almost always data. The source can be RAM, a disk file, or one
of the programmer’s serial ports.
SSOP An acronym for Shrink Small Outline Package, a type of device package.
A SOP with more leads at higher and finer pitch. Also called TSOP II.
Status Window The top three lines of the screen. The following information is displayed
in the status window: the name of the data file, the amount of user RAM,
the version numbers of the algorithm/system disk, the device
manufacturer and part number, the family/pinout code, and the data
translation format.
Structured Test Vectors A string of test conditions applied to a PLD in a programmer/tester to
stimulate inputs and test outputs to ensure functionality. A test vector is
one such string. For instance, 20 characters for a 20-pin PLD, with 10
input signals and 10 expected outputs.
Structured Test Vectors
(design)
Structured vectors created by the design engineer to confirm that the
design is operating as intended. For instance, that a 10-bit counter is
counting to 10. Design vectors are used both in preprogramming
simulation and in manufacturing.
Structured Test Vectors
(device)
Structured vectors created by the design engineer, test engineer, or an
automatic test vector generation program, which confirm that the device
is operating properly after programming. For instance, structured vectors
can ensure that nothing can happen in the device to prevent the 10-bit
counter from operating correctly. An exhaustive set of device vectors will
assure that no undetectable faults may occur.
Sumcheck A 4- or 8-digit hexadecimal number that, when compared to the original
data, allows you to verify that a copy of the data matches the original
data. Memory devices have 8-digit sumchecks and logic devices have 4-
digit sumchecks. For devices in a set, you can calculate the individual
sumcheck of the device and the sumcheck of the entire set.
Terminal Emulator A program to enable a PC or other computer to act as an ASCII terminal.
Allows a PC to be used to communicate with a programmer in terminal
mode or with a mainframe.
Terminal Mode One of the programmer’s three operating modes. The programmer is
controlled from either a dedicated terminal or from a workstation
running a terminal emulation package. Device data files can be stored on
the programmer’s disk (and on the workstation).
Test Vector Test vectors functionally test the device, using structured test vectors
stored in memory or in a disk file.