Autosite_Users_Manual.pdf - 第164页

Glossary AutoSite User Manual Glossa ry-3 DIP A type of device package. An acronym for Dual In-line Package. Down loa d Dat a A file operation that moves a data file from a host computer to the programmer’s RAM or disk. …

Glossary

Glossary-2 AutoSite User Manual

Compare Electronic ID

A command that compares the electronic signature of the socketed device

against the electronic signature specified in the currently selected

algorithm.

Compensated Vector Test

A device test that enables load compensation on PLD output pins under

test during vector testing. This may eliminate structured test error when

testing PLDs sensitive to output loading, where many of the devices

Computer Remote Control

A command set that may be used to operate a programmer remotely.

These commands are usually the basis for external programmer drivers,

which may operate a programmer from a PC or other host. See also

Remote Mode.

Continuity Check

A device check that tests for open device pins before performing a device

operation.

CRC

An acronym for Computer Remote Control. See Remote Mode and

Computer Remote Control.

Cross Programming

A programming operation that allows a single generic programmable

logic device (PLD) to be configured as any one of many PLD

architectures. Consequently, the generic device can take on the function

of many subset devices. As an example, a 16V8 generic PLD can be

configured as a 16R4, 16R8, 16L8, etc.

Data Bits

A communication parameter that specifies the number of bits per byte.

Data Word Width

The word width of the data to be used during a device operation. For 8-

bit (or above) devices, the maximum is 64, and the minimum word width

is equal to the device width. For 4-bit devices, the word width can be 4, 8,

16, or 32. This value should match the word width of the data bus in the

target system for the device being programmed.

Destination

The place where you are sending something. The “something” you are

sending is almost always data. The destination can be RAM, a disk file, or

one of the programmer’s serial ports.

Device Begin Address

The first hexadecimal address of device data to use for a device operation.

If programming, it represents the first address to program. If verifying, it

represents the first address to verify.

Device Block Size

The size of device data to be used in device operations.

Device Support Packages

The method of device support for AutoSite. The device algorithms have

been organized according to package type and pin count.

Device Operation

Usually a term that refers to loading, programming, or verifying.

However, it can also refer to other available commands, such as device

checks and electronic erasing.

Device Word Width

The number of bits in the data word of the device.

Glossary

AutoSite User Manual Glossary-3

DIP

A type of device package. An acronym for Dual In-line Package.

Download Data

A file operation that moves a data file from a host computer to the

programmer’s RAM or disk.

Download Echoing

Displays the data being downloaded.

Download Host Command

A command that is sent from the programmer to the host during a

download. The command tells the host to begin sending data to the

programmer.

E-MICRO

An acronym for Programmable Microcontroller. A type of device

technology.

EPROM

An acronym for Erasable Programmable Read-Only Memory. (Usually

refers to UV erasable memories.)

EEPROM

An acronym for Electronically Erasable Programmable Read-Only

Memory. The device can be either completely or partially erased

electrically in circuit or on the programmer.

Electronic ID

The combination of bytes that identify the device number and

manufacturer of a programmable device.

Enhanced Security Fuse

Capability

Found on EMICROs, the Enhanced Security Fuse Capability allows

security fuse data to be stored in a data file. For more information, or to

see if a device supports this capability, see the device manufacturer’s data

book.

ESD

An acronym for Electrostatic Discharge.

False Positive

In programming, a misprogrammed fuse that retains minimal

operational characteristics so that it passes the fuse test. These may be

inadequately programmed, or over-programmed so that they will fail

later in circuit.

File Transfer Operations

An operation involving the transfer of data between the programmer and

a host. Upload and download are file transfer operations.

Filename

The name of the disk file to use during file operations. The filename must

follow standard DOS conventions: up to eight alphanumeric characters,

followed by an optional three-character file extension, with the two fields

separated by a period. Examples of valid filenames would be

27256.dat

and

filename.c

Fuse Verification

A type of post-programming device check that checks the fuse pattern

programmed into a logic device with the pattern in user memory.

Fusemap

The fuse-level description portion of a programmable integrated circuit.

Fusemaps are typically files in JEDEC Standard #3A and are downloaded

to PLD programmers for device implementation.

Glossary

Glossary-4 AutoSite User Manual

Handshaking

The required sequence of signals for communication between two units.

The I/O bus protocol for a unit defines its handshaking requirements.

This is especially true for asynchronous I/O systems in which each signal

requires a response to complete an I/O operation.

High-speed Logic Drivers

A device test that increases the speed of the logic transitions between 0 to

1 and 1 to 0 of the test vector input states. This test is a diagnostic tool

designed to help debug and classify test vector failures. Specifically, this

test is designed to help identify vector transitions that are speed

dependent.

Host

A micro-mini, or mainframe computer used to control AutoSite in

Remote mode. You must use a software driver, such as Data I/O’s

TaskLink, to allow the computer to communicate with AutoSite.

Host Command

(download & upload)

The command that is sent from AutoSite to the host system during

uploading/downloading. See Download Host Command and Upload

Host Command.

I/O Address Offset

This value influences the beginning address where data is stored during a

file transfer operation. For uploads, the I/O Offset represents the address

to start loading a formatted data file. For downloads, the I/O Offset is

subtracted from the beginning address in the formatted data file. The

result is then added to the memory begin address to determine where the

block of data is loaded.

I/O Timeout

The amount of time that AutoSite will wait for a data transfer to begin.

I/O Translation Format

See Data Translation Format.

Illegal Bit

An illegal bit is when a device contains a programmed location and the

data file specifies that the location should be unprogrammed.

Illegal Bit Check

A test that determines whether or not a socketed device contains any

illegal bits.

Instrument Control Code

A 1-digit number that signals or controls data transfers. It also

implements a form of remote control that provides peripherals with flow

control beyond that provided by software handshaking.

JEDEC

Joint Electron Design Engineering Committee: a committee of

programmer and semiconductor manufacturers that provides common

standards for programmable issues. Examples of these standards include

acceptable test characters for PLDs and standard data transfer/

programming formats for PLDs. JEDEC Standard #3 is the industry

standard for PLD formats.

JEDEC Standard #3A

The standard PLD data translation format, as defined by JEDEC for PLD

design software to communicate with PLD programmers. It defines the

states of all fuses in the device (the fusemap) and may include test vectors

for device testing.