Agilent Technologies FS2101 Manuale Utente

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Multiplexed versus 
Demultiplexed 
The PCI Local Bus specification specifies that the AD lines and 
the C/BE lines carry different information at different times.  This 
is referred to as multiplexed.  Using the extra clocking features 
and additional pods of the logic analyzer the AD lines can be 
demultiplexed.  By using the PCI Active Analysis Probe in 
demultiplexed mode the address of the transaction can be held 
throughout the transaction thus making triggering and 
performance analysis easier. 
Please note that the C/BE lines have been demultiplexed on the 
PCI Active Analysis Probe.  Thus the command is held through 
the transaction and no additional clocking or pods is required.  
The latched command L_CMD signals are on pod 1 channels 
10-7.  
 
 
32 bit PCI Demultiplexed 
Logic Analyzer  
PCI Active Analysis 
Probe 
Comment 
Master POD 1 
Header 1 
 
           POD 2 
Header 2 
 
           POD 3 
Header 3 
 
           POD 4 
Header 4 
 
           POD 5 
Header 5 
16554/5/6/7 
expander 
card POD 1 
           POD 6 
Header 6 
 16554/5/6/7 
expander 
card POD 2 
 
 
 
32 bit PCI Multiplexed 
Logic Analyzer  
PCI Active Analysis 
Probe 
Comment 
Master POD 1 
Header 1 
 
            POD 2 
Header 2 
 
            POD 3 
Header 3 
 
            POD 4 
Header 4 
 
 
 
 
 
 
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