HP 16500A manual Making The Measurement, Marker Placement Using the Timing Analyzer HP 16510B

Making The Measurement

What you want to know is how much time elapses between the time RAS goes low and the time CAS goes high again. You will use the X and O markers to quickly find the answer. Remember you specified the negative-going edge of the RAS to be your trigger point, therefore the X marker (green) should be on this edge if the X to Trig field = 0. If not, follow steps 1 and 2.

1.Touch the Trig to X field. The field will turn light blue. At this time you can either adjust the X to trigger time using the front-panel knob, or touch the field again and use the keypad to set the time to 0. Notice that this step has superimposed the X marker (green) over the trigger marker (red).

2.Touch the Trig to O field. The field will turn light blue. At this time you should use the front-panel knob to set O marker (yellow) on the positive going edge of the CAS waveform. It is possible to touch the field again and use the keypad pop-up to set the desired time, however, you do not know the time to set it to. The knob allows you to place the marker wherever you want it to be.

Figure 7-10. Marker Placement

Using the Timing Analyzer	HP 16510B
7 - 12	Front-Panel Reference