4. Commands
4-60
UniSite-xpi User Manual
Electronic Erase
This command bulk erases an electronically erasable device
.
To erase a device, follow these steps:
1.
Select and socket an electronically erasable device.
2.
Press E
NTER
to erase the device. When finished, UniSite-xpi displays
Done
in the message bar.
3.
If you try to erase a device that cannot be electronically erased,
UniSite-xpi displays the following error.
Electronic bulk erase not supported by device.
Note: You cannot access this screen if you have selected a device that cannot be
electronically erased (a bipolar PROM, for example).
A blank check is run after a bulk erase operation if the blank check switch is
enabled and if the selected device supports blank check.
This device operation is not necessary for most electronically erasable
devices. The Electronic Erase is part of the normal programming cycle.
Before programming an electronically erasable device, UniSite-xpi checks
the device and displays a warning if the device is non-blank. If you
enable the erasing of the device, UniSite-xpi erases the device before
programming the device.
Underblow/Overblow
(Logic Devices Only)
The under/overblow feature compares the fuse map of a logic device
with the fuse map in RAM.
An underblow condition means that the device’s fuse is intact, but the
data in memory indicates that it should have been blown. An overblow
means that the device’s fuse is blown, but should have remained intact.
(The under/overblow feature is not supported for POF devices.)
To use the under/overblow feature, follow these steps:
1.
Select and socket a logic device.
2.
Press E
NTER
to begin the test. The under/overblow screen is
displayed. If the data source does not have proper fuse data (for the
specified device type), a message appears saying that the file is not
initialized. Type C to initialize the file.
Main
Menu
More
Com-
mands
Device
Checks
Electronic
Erase
Main
Menu
More
Com-
mands
Device
Checks
Under/
Overblow
Summary of Contents for UniSite-xpi
Page 2: ...981 0014 UniSite Programming System User Manual Also Covering Legacy UniSite Programmers ...
Page 72: ...2 Setup and Installation 2 42 UniSite xpi User Manual ...
Page 134: ...3 Getting Started 3 62 UniSite xpi User Manual ...
Page 238: ...5 Computer Remote Control 5 10 UniSite xpi User Manual ...
Page 296: ...6 Translation Formats 6 58 UniSite xpi User Manual ...
Page 402: ...Keep Current Subscription Service 6 Keep Current ...