Data I/O UniSite-xpi User Manual page 161

Programming
Parameters
UniSite-xpi User Manual
Use the Edit Programming Parameters screen to specify programming
options, to enter memory block parameters, and to enable/disable
different tests.
More Configure
Com- System
mands
If you want to save the settings for use in a future programming session,
then you should save them in a configuration file. Use the Save command
(part of the Configure System menu) to save the settings for later use.
The different programming parameters and settings are explained below.
• Reject Option (C,S)—Selects the number of times the device is
pulsed with programming voltage before it is rejected as
unprogrammable. C selects the number of pulses specified by the
manufacturer. S selects either a one-pulse or the
military-specification number of programming pulses. Unless you
are programming devices to a strict military specification, you should
leave this option set at C. This option defaults to C.
• Logic Verification (F,V,A)—Specifies the type of logic verification to
perform. Select from Fuse Verification F, Vector Verification V, or All
A. Fuse Verification checks the fuse pattern programmed into the
device with the pattern in UniSite-xpi's memory. Vector Verification
functionally tests the device, using structured test vectors stored in
memory. A directs UniSite-xpi to perform both fuse verification and
vector verification. Press S
This parameter defaults to A.
UniSite-xpi does not support vector testing for logic devices with
more than 84 pins.
• Verify Passes (0,1,2)—Selects the number of times to test the device.
0 directs UniSite-xpi not to test the device. 1 directs UniSite-xpi to test
the device once at the device manufacturer's nominal Vcc. 2 directs
UniSite-xpi to verify the device at the device manufacturer's
recommended high and low Vcc levels. This parameter defaults to 2.
• Verify Data Format (B,H)—Specifies either B (binary) or H (hex) for
the mis-verify data display format on the Verify Memory Device
screen.
• Algorithm Type (D,E,K,C)—Selects the type of device algorithms. D
is the default and directs UniSite-xpi to select algorithms from the
algorithms included on the Algorithm disk. If you set Algorithm
Source to D and then choose the Select Device command, UniSite-xpi
displays the standard Manufacturer List screen, as shown in
Figure 3-42.
E directs UniSite-xpi to select algorithms from the alg.ext file.
Extended algorithms (algorithms contained in the alg.ext file) are
used by Data I/O to handle device approvals and special device
algorithm updates. If you set Algorithm Source to E and then choose
Edit
to step through the three choices.
PACE
4. Commands
Program.
Parame-
ters
4-27