Specifications

Data Line Format 257
The header always contains the command “$T” (denoting a time column),
followed by a tab character, followed by “$D” (denoting a delay column).
The remaining items depend on the traces that were selected in the Timing
window.
NOTE: The Timing tool always places the time and delay items in the order given
here, although it will accept data with these items present in any order, or
even completely missing. Since time and delay are redundant, either one is
sufficient. If both are missing, a default delay value will be used.
Single Signal Items
An individual signal is specified by the characters $I (for input) followed
by a space, followed by the name of the signal. If the signal contains any
blanks or control characters, it will be enclosed in quotation marks.
Grouped Items
Grouped items are denoted by the characters “$I” followed by a blank, fol-
lowed by the name of the group, followed immediately (without any
spaces) by a list of the signals in the group, contained in square brackets.
Any group or signal name which contains blanks or control characters will
be enclosed in quotation marks.
Data Line Format
Each line following the header must contain one data item for each item in
the header line. Thus, the first two items will always be:
 The time at which the events on this line take place. The Timing tool
places in this column the absolute time at which the events occurred
(according to the time scale on the diagram). However, when the data
is pasted, the times are considered to be relative to the time of the first
data line. This is a decimal integer which may take on any 32-bit
unsigned value.
LW Reference.bk Page 257 Monday, December 15, 2003 5:59 PM