Specifications

CHAPTER 4: SYNTHESIS
ANALYZING SYNTHESIS RESULTS WITH THE RTL VIEWER
82 ■ INTRODUCTION TO QUARTUS II ALTERA CORPORATION
design file, the Timing Closure floorplan, Assignment Editor, Chip Editor,
Resource Property Editor, or Technology Map Viewer, depending on which
locations are available for that node.
If a design is large, the RTL Viewer partitions it into multiple pages for
display. The RTL/Technology Map Viewer page of the Options dialog box
(Tools menu) allows you to specify options that control how much of the
design the RTL Viewer displays on each page. You can navigate through
pages in the RTL Viewer by using the Next Page and Previous Page buttons
or by using the Go To command (Edit menu).
The Filter command (right button pop-up menu) allows you to filter the
view to show the sources, destinations, or both sources and destinations of
the selected node(s) or net(s). You can also filter the view to show the paths
and nodes between two selected nodes. Each filter you choose creates a new
filtered page in the RTL Viewer; you can then navigate through the filtered
pages and the original page of the design with the Forward and Back
buttons.
The RTL Viewer also offers a State Machine Viewer window that allows you
to view state machine diagrams. If you have a project that has a state
machine, you can open the State Machine Viewer window by first opening
the project in the RTL viewer, and then double-clicking on the state machine
instance or pointing to the state machine instance and choosing Hierarchy
Down (right button pop-up menu). See Figure 7.
Figure 7. State Machine Instance in RTL Viewer Window
Double-clicking
on a state
machine
instance symbol
in the RTL
Viewer opens
the State
Machine Viewer
window
The Hierarchy List allows you to select the state machines in the project.