Agilent Technologies FS2334 user manual State Display

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State Display

The following figure shows a typical DDR2 screen display. Because the analyzer may sample data on both edges of the clock (FS1117) there are going to be some states that have no commands or data associated with them. The Protocol Decoder contains a filter that will allow post filtering of any states included Not Selected state, which is defined as a state that has no command or data associated with it.

Symbols were created for the Command label. These symbols make searching for a particular command in a listing easier as well as setting up triggers. These decode the RAS, CAS, and WE lines to display the DDR Command as “Read”, “Write”, etc., so you don’t have to refer to the DDR chip data sheet to see what command is being executed. These decoded values are displayed by setting the display base (in the listing window) or the label property (in the waveform window) to “Symbols”. The display base defaults to hexadecimal.

Filtering on the 169xx is configured by the user there are no predetermined filters in the 169xx decoder. To set up a filter in the 169xx environment select tools from the menu bar, then select filter/colorize. You can choose to filter before or after the decoder. If you filter before the decoder, use caution to not filter any labels needed by the decoder. If you filter after the decoder you can use the label “filter tags” created by the decoder, change hex to symbols and use symbols to remove any command that the user does not want to see.

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Contents DDR2 Dimm High Speed Probe FS2334 Product Warranty Appendix For Technical Support For Sales and Marketing SupportProduct Warranty Exclusive RemediesSoftware License Agreement Introduction DefinitionsProbe Components Probe Technical Feature SummaryFS2334 Probe Description Connecting the DDR2 Probe to the Logic Analyzer Signal Assignments on Probe PodsSignal Threshold Voltage Settings Test Points Buffered signals on the probe Connecting to your Target SystemSignal Isolation on the Probe Write state analysis Page 169xx Licensing Setting up the 169xx AnalyzerSoftware Requirements Offline Analysis Page Taking a Trace, Triggering, and Seeing Measurement Results Decoding DDR CommandsTimingZoom Analysis State Analysis OverviewState Analysis Operation Read and Write at 667MT/s or slower Process for setting sampling positions at speeds of 800MT/s State analysis calibration procedure Page Page Adjusting the sampling positions with controlled stimulus Page State Display FS1140 Installation and Licensing Loading the FS1140Setting up the FS1140 DDR2 Tool Statistics Export Timing AnalysisPage Header 1 Command AppendixDP16P/ CLK CK0 Header 2 Command NC3 Header 3 Write DQ9 Header 4 Write Ground D13 DQ22 20K ohm to D14 DQ18 D15 DQ23 Header 5 Write CB0 CB1 20K ohm to Ground D13 No connection D14 D15 Header 6 Write DM5DQS14 Header 7 -Write 20K ohm to Ground D13 DQ50 D14 DQ55 D15 DQ51 Header 8 Write SDA Header 12 Read Duplicates only data signals 20K ohm to Ground D15 No connection Header 10 Read Duplicates only data signals DP16P/ CLK CB7 Header 11 Read Duplicates only data signals DP16P/ CLK RAS Header 9 Read Duplicates only data signals DP16P/ CLK CK2 Header 13 Read Duplicates only data signals Ground D13 DQ50 20K ohm to D14 DQ55 D15 DQ51
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