Measurement Computing Analyzer488 - Manual (Page 199)

Section 5 Analyst488 Software
5.11
The last five fields show the state of the IEEE 488 bus management
lines. If a line is asserted, the abbreviation for that line will be displayed.
The abbreviations for each line are: ATN (Attention), REN (Remote Enable),
IFC
(Interface Clear), SRQ (Service Request), and EOI (End or Identify).
If a Bus Error occurred during the data transfer, the word ERROR will
appear on the far right of the display line.
5.8.1.2 Hexadecimal
Selecting Hexadecimal will display data in hexadecimal format. Bus
events occurring while a particular bus management line was asserted can
be highlighted by using the Hex Highlight command.
The leftmost number is the starting location of the data displayed on
that line. Following that location are 16 hexadecimal bytes corresponding
to the state of the data lines for each bus event. After the last hexadecimal
byte is a text line showing the equivalent ASCII representation for each bus
event.
5.8.1.3 Hex Highlight Mode
When this command is selected, a menu will appear asking for the
management line to use for highlighting of data bytes. Hex Highlight Mode
allows for easy identification of bus events that occurred when a particular
management line was in the asserted state.
Hex Highlight Mode may be used at any time, but its effect will not be
apparent except with data displayed in Hexadecimal format.
The default Highlight is Attention (ATN). If Trigger is selected, the
data transfer that was the trigger point will be highlighted.
5.8.1.4 Mixed
Selecting Mixed Format displays bus events in a composite
message/hexadecimal format. Information is shown in two columns: bus
commands and ASCII data in the left column and the hexadecimal