HP 1630A Operating And Programming Manual page 18

Model 1630A/D/G
General Information
Table 1-2. Operating Characteristics
State Mode
Clocks : three ORed clocks operate in single-phase or two-phase demultiplexing mode .
Clock edge is selectable as positive, negative, or both edges for each clock .
Different edge selections may be made on the same clock if used in each phase of
the multiplexed mode .
Data Indexing
Resources:
four terms including the Boolean NOT of each term, ALL patterns, or NO pattern . (A
term is the AND combination of bit patterns in each label .) Terms may be used as
often as desired .
Trigger: up to four resource terms may be used in sequence to establish the trace parameter.
The last term in the sequence may use up to four resource terms in an ORed format .
Restart: one to four resource terms may be used in an ORed condition for a sequence-restart
condition.
Store qualifiers :
one to four resource terms may be used in an ORed format . Store qualification may
be separately defined for each term in the trigger sequence .
Occurrence : occurrence of the last event in the sequence may be specified up to n = 59999.
Compare: trace until compare "equal to" or "not equal to" is provided . The compare file is the
width of the analyzer, with a depth up to 16 words in the 1630A/D and in the 1630G in
the [Edit Compare] mode . When the 1630G is in the [Full Compare] mode, an entire
trace may be compared . Each word in the compare buffer can have "don't cares" and
can be compared anywhere in the 1024 deep memory .
Arming :
the state analyzer can be armed by the full Data Indexing capability of the Timing
Analyzer .
Overview
XY Chart: a chart of any user-defined label can be shown . The user can change the upperand
lower bounds of the chart, and all 1024 states of the memory can be simultaneously
displayed.
Time measurement: a timer can be started on completion of a sequence of up to three resource terms
with restart and occurrence capability like state data indexing . The timer can be
stopped and/or restarted on OR'd combinations of one to four resource terms . A
histogram of the start/stop time measurement is displayed. The user can specify up
to eight time ranges . Minimum time, maximum time, average time, last time, total
time, and total samples are also displayed .
Resolution - displayed statistics 250 ns or 0.1% of reading, whichever is greater, (4-
digit display) . Histogram ranges : 1 usec .
State histogram :
a histogram of any user-defined label can be shown . The user can specify up to eight
labels and ranges .
Maximum Count - approx 2(E63) .
Time position
measurement: produces a time-varying profile of system activity . Measurements are the number of
occurrences of an event per unit time . The measurement is used to understand the
behavior of systems under time-varying loads.
Linkage
measurement : the relative frequency of direct transfers between module pairs are depicted in a
histogram for identification of light or heavy transfer . Modifications of software may
then be made to optimize program efficiency .
Resolution - actual count is rounded to 0.1% (4-digit display) .