The Timing Format Specification; Timing Format Specification [Assignment]; Figure 6-7. Timing Assignment Format Specification - HP 1630A Operating And Programming Manual

Model 1630A/D/G
Timing Measurements
THE TIMING FORMAT SPECIFICATION
Timing Format Specification [Assignment]
The [Assignment] menu allows you to setup the analyzer to present information in a format that will be useful .
In the [Assignment] menu, you perform two setup assignments : label assignments and threshold
assignments . See figure 6-7 .
LABEL ASSIGNMENTS
Timing Format Specification_____________________________________
Fctivity> I it 11111 ----- I_
Label PoI
LABEL
Figure 6-7. Timing Assignment Format Specification
When the analyzer makes a measurement, it collects the states from all input bits (whether part of a label or
not) . When a label is assigned to a bit, that bit is available to the display. The analyzer cannot place the activity
from a bit on the display unless that bit has a label assigned to it .
A benefit of labeling sets of bits during a timing analysis is that abnormal occurrences can be easily identified,
such as when two handshake lines are high during the same instant of time .
The label capabilities and limitations are as follows :
Maximum no. of labels: 16
Label size : 1 to 5 alphanumeric characters .
Label content :
Label polarity :
1 to all bits . Same bit can be included in all labels .
[+]
=
positive-true ; [-] = negative-true (only affects LIST displays and TRACE
specification).
Label bit arrangement : (Example of 4-bit label)
HNDSK
POD1 PODO
7 . ...0 7. . ..0
MSB
1 1 1 1 LSB