4. Commands
UniSite-xpi User Manual 4-15
• Logic Verification (A,F,V)—Specifies the type of logic verification to
perform after programming. 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
PACE to
step through the three choices. This parameter defaults to A.
UniSite-xpi does not support vector testing for logic devices with
more than 84 pins. Attempting to perform a vector test on a device
with more than 84 pins will yield the following message:
OPERATION COMPLETE. Sumcheck = hhhhhhhh (Vector test not
supported)
• 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.
• 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.
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