Agilent Technologies U3047AM12, User'S And Service Manual

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User’s and Service Guide U3047-90001 45
U3047AM12 Control Lines
After a power reset all DUT control lines are initially configured to a logic high state or connected to Pin 13,
refer to
Figure 36 on page 42 . To reset all control lines to logic high, without having to reset the power
switch on the test set, make the following network analyzer entry:
Front panel network analyzer Interface Control Mode line entry = 112.0 > OK.
Always determine which control lines you want set to a logic zero, the other remaining lines will
automatically be set to a logic high. Note the <data> value of these lines and calculate the SUM of their
<data> values.
Listed are two examples to illustrate this concept. Refer to Figure 28, shown with all lines = logic high.
Example 1 : To change lines 1 & 8 to equal logic Low, all others logic high.
1. Line 1 (<address> = 112 and <data> = 1)
2. Line 8 (<address> = 112 and <data> = 128)
3. The SUM of the <data> values = 129
4. Front panel network analyzer Interface Control Mode line entry = 112.129 > OK.
Example 2 : From Example 1 to only change Lines 2 & 3 to equal logic low, all others logic high.
1. Line 2 (<address> = 112 and <data> = 2)
2. Line 3 (<address> = 112 and <data> = 4)
3. The SUM of the <data> values = 6
4. Front panel network analyzer Interface Control Mode line entry = 112.6 > OK.
NOTE Since all control lines have the same <address>, only one "<address>.<data>" command
line is needed to control all 8 lines.