Virtuoso Schematic Composer User Guide

Checking Designs

3.In the Placement field, clicksingle or multiple.

The following example shows schematic monitors.

4. When you have completed placing the monitors, run a simulation.

Setting a Time Value for Displaying Signal Results

When you set the time, the time is updated in the status banner of the window and each of the monitors in the window. Monitors displaying the time show what time the signal transitioned to its current state. If you are synchronizing the monitors with your simulation, you can still set the time manually. You do not have to turn synchronization off to use the Set Time command.

Note: You must open a simulation database before you can use the Set Time command.

To set a time value for displaying signal results, do the following:

1. Choose Check – Schematic Monitors – Set Time.

Virtuoso Schematic Composer User Guide

Checking Designs

The Set Time form appears.

2.To set the time, use one of the following methods:

In the Time field, type a value measured in the time units displayed inUnits.

In the Time Line field, click and drag the slider forward or backward through simulation history. The value above the slider changes to reflect simulation time values. Release the button when you reach the new time value.

In the Move field, click the minus to move backward through time by the time interval you set in the interval field. Click the plus to move forward through time by the time interval you set in the interval field.

In the prev event and next event, select the monitors that display the results of the signals you are interested in. Click prev event to move directly to the most recent transition of the signals monitored by the selected monitors. Click next event to move directly to the next transition of the signals monitored by the selected monitors.

3.Click OK.

Setting the Time Scale

The options you set using the Set Time Scale command also affect the values you set on the Schematic Monitors – Set Time command form.

Note: You must open a simulation database before you can use the Set Time Scale command.

Virtuoso Schematic Composer User Guide

Checking Designs

To change the units, scale factor, and precision of time values displayed in the status banner and in the monitors, do the following:

1.Choose Check – Schematic Monitors – Set Time Scale.

The Time Scale form appears.

2.Set the options.

3.Click OK.

Setting the Display Radius

Setting a display radix changes the radix of monitors displaying buses. Buses are displayed in binary by default.

To set the displayed bus values to a new display radix, do the following:

1.Choose Check – Schematic Monitors – Set Display Radix.

The Set Radix form appears.

2. Click the monitors from the schematic cellview to display bus values.

Virtuoso Schematic Composer User Guide

Checking Designs

3.Choose a new radix.

4.Click OK.

Synchronizing with Simulation at Breakpoint

Synchronization updates the schematic monitors each time you interrupt your simulation. The updated monitors represent the state of the simulation at the point of interruption.

Synchronization is turned on automatically at the start of your simulation session.

To update the schematic monitors, do the following:

1.Choose Check – Schematic Monitors – Synchronize.

The Synchronization form appears.

2.Turn on or off the Synchronize with Simulator at Breakpoint field.

3.Click OK.

The system enables synchronization to display simulation results in monitors at simulation breakpoints.

Closing the SHM Database

To close the SHM database in the current window, do the following:

Choose Check – Schematic Monitors – Close Data.

If the database is connected to other schematic windows, this command closes the database as a source for those windows as well.

After you close a database, all monitor values are cleared. The monitors and their empty format fields remain in your schematic window. The simulation time and the SHM database name disappear from the status banner.

Virtuoso Schematic Composer User Guide

Checking Designs