HP 81200 User Manual page 118

Setting Up Ports and Channels How to Set Up a Port or Channel for Generated Signals
How to Operate the Frequency Overview Window
The Frequency Overview window may look as shown below:
Figure 49 Frequency Overview Window
The window shows the present system clock period and frequency on top.
Period and frequency are equivalent.
The rest of the window is a table which basically consists of 6 columns and
two blocks.
The upper block shows the frequency multiplier (FM) factors and
consequences available for the chosen system clock frequency. If you
change the system clock frequency, it can happen that the FM factors are
no longer valid. Clicking the right-arrow or left-arrow buttons selects the
next higher or lower FMR.
The lower block shows the ports, pulse port terminals, and unconnected
channels, their current FM setting, and their FM options. Channels
connected to a data port are not displayed, because data port frequencies
can only be changed as a whole. It depends on the respective frontends
whether a certain FM factor can be specified.
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HP 81200 Data Generator/Analyzer Platform User Guide, Revision 2.1