In this case, transitions are being detected with each sample. Therefore,
they are all being stored. In addition, each sample pair contains a transition.
For example, time tag 1 (100/000) contains a transition and is different from
time tag 2 (111/011), which also contains a transition. The difference
between the two will trigger the transition detector.
If this were to continue throughout the trace, You would store 4 Kbytes
−
1
transitions, or 4095. As with the 125-MHz mode, the actual number of
transitions stored will fall somewhere between 682 and 4095, depending on
the frequency of transitions.
Other Transitional Timing Considerations
Pod Pairs are Independent
In single run mode each pod pair runs
independently. This means when one pod pair fills its trace buffer it will
not shut the others down. Should you have a pod pair with enabled data
lines and with no transitions on its lines, you get a message "Storing
transitions after trigger for pods nn/nn." In repetitive run mode, a full
pod pair waits 2 seconds, then halts all other pod pairs.
The Format Menu
Timing Acquisition Mode Field (Timing only)
11–11
Summary of Contents for 1660A Series
Page 5: ...vi...
Page 14: ...1 Introduction...
Page 24: ...2 Probing...
Page 35: ...Probing Assembling the Probing System 2 12...
Page 36: ...3 Using the Front Panel Interface...
Page 65: ...3 30...
Page 66: ...4 Using the Mouse and the Optional Keyboard...
Page 74: ...5 Connecting a Printer...
Page 91: ...5 18...
Page 92: ...6 Disk Drive Operations...
Page 118: ...7 The RS 232C GPIB and Centronix Interface...
Page 121: ...RS 232 GPIB Menu Map Cont The RS 232C GPIB and Centronix Interface 7 4...
Page 123: ...Printer Controller Menu Map Cont The RS 232C GPIB and Centronix Interface 7 6...
Page 132: ...8 The System Utilities...
Page 137: ...9 The Common Menu Fields...
Page 150: ...9 14...
Page 151: ...10 The Configuration Menu...
Page 159: ...11 The Format Menu...
Page 161: ...Format Menu Map The Format Menu 11 3...
Page 194: ...11 36...
Page 195: ...12 The Trigger Menu...
Page 198: ...Trigger Menu Map The Trigger Menu 12 4...
Page 199: ...Trigger Menu Map Continued The Trigger Menu 12 5...
Page 235: ...13 The Listing Menu...
Page 237: ...Listing Menu Map The Listing Menu 13 3...
Page 260: ...13 26...
Page 261: ...14 The Waveform Menu...
Page 263: ...Waveform Menu Map The Waveform Menu 14 3...
Page 264: ...Waveform Menu Map cont The Waveform Menu 14 4...
Page 300: ...14 40...
Page 301: ...15 The Mixed Display Menu...
Page 306: ...15 6...
Page 307: ...16 The Chart Menu...
Page 310: ...Chart Menu Map The Chart Menu 16 4...
Page 311: ...Chart Menu Map cont The Chart Menu 16 5...
Page 336: ...16 30...
Page 337: ...17 The Compare Menu...
Page 340: ...Compare Menu Map The Compare Menu 17 4...
Page 355: ...18 Error Messages...
Page 363: ...19 Specifications and Characteristics...
Page 377: ...20 Operator s Service...
Page 386: ...Troubleshooting Flowchart 1 Operator s Service To use the flowcharts 20 10...
Page 387: ...Troubleshooting Flowchart 2 Operator s Service To use the flowcharts 20 11...