Fluke 9000A-Z80QT, Instruction Manual

Page: 26 / 108

ZBOQT
CAUTION
To prevent
possible damage to the
probe
or
the
UUT,
do not
use the probe to
generate stimulus pulses
while a
Quick-
Looping function is
being performed
it
the
UUT
crystal or clock
frequency is
less than
1
MHz.
The preceding caution
is
necessary because the
combination
of the high
repetition rate of
a
Quick-Loopingfunction and a slow UUT clock (below
1
MHz) greatly increases the on time of the pulser. If
the on time is
excessively
long,
probe stimulus pulses can cause damage to the probe or the UUT. Note
that
the response
capability of the
probe,
such as logic level
reading with the
Read Probe
operation,
is unaffected by high duty cycles.
3-13. Using the 9000 Series
for
Quick-Looping Read and Write
NOTE
Special addresses
mentioned
in the
followingparagraphs are
also
valid for 9100 Series mainframes. However, they
are not
necessary
because the 9100 Series
provides
softkeys to directly access these
pod
functions. The recommended method of
running pod-
controlled
quick tests
from the 9100 Series
is
given
undera separate
heading.
The
operator
selects these
functions
by using the special addresses listed
in Table
3-3.
For
example, a read
operation at address
10 OFOO causes the pod to perform
the
Quick-Looping read operation
at address 00
OFOO.
3-14.
Using
the
9100
Series tor Quick Looping Read and
Write
To
start Quick-Looping
read using the 9100 Series mainframe, proceed
as
follows:
1.
Press the POD
key.
2.
Press the
QWK_RD
softkey, followed by ENTER.
Table
3-3. Quick-Looping Read and Write Test
Addresses
OPERATION PARAMETERS
WRITE @
1X XXXX=YY X XXXX =
Write
Address
W
=
Write Data
READ @
1X XXXX X XXXX =
Read Address
3-8