Product Documentation
Virtuoso Power Manager User Guide
Product Version IC23.1, June 2023

Power Manager Setup Form

Use the Power Manager Setup form to specify inputs for user-defined settings though registration. The form contains the following tabs.

Tab Description

Supply Nets

Lets you register certain names or regular expressions as names of power nets or ground nets.

Libraries

Lets you register the libraries-related information for reading the standard and special cells modeling information.

Devices

Lets you register the device and terminal related information for reading the device type and its topology in the design.

In-Design Checks

Lets you define the severity of reporting of a set of predefined and configurable circuit checks and supply states to set multiple voltages for efficient power management.

Export

Lets you register a power net and a ground net from the pair defined explicitly in the setup as a supply set and the associated power domain and port attributes.

Miscellaneous

Lets you specify some generic settings.

Supply Nets

The following table describes the fields available on the Supply Nets tab of the Power Manager Setup form.

Section Description

Registered Supply Nets

Specifies names as names of power nets or ground nets.

Regular Expression Based Registration

Specifies regular expressions for nets in the Power Nets, Ground Nets, Pwell Nets, Nwell Nets, Deep Pwell Nets, and Deep Nwell Nets fields.

Excluded Nets

Specifies names or regular expressions for excluded nets in the Names and Regular Expressions fields.

Monitor Nets

Specifies names or regular expressions for monitor nets in the Names and Regular Expressions fields.

Supply NetSet Properties Prefix

Specifies netSet properties prefix for nets in the Power Nets, Ground Nets, Pwell Nets, Nwell Nets, Deep Pwell Nets, and Deep Nwell Nets fields.

Libraries

The following table describes the fields available on the Libraries tab of the Power Manager Setup form.

Section Description

Liberty/Tech Files

Specifies a list of Liberty model library files.

1801 File Binding

Specifies a list of 1801 special cell definition library files.

Reference Library Cells

Specifies the instances of any library or a particular cell in a design, apart from the Liberty cell, as reference libraries.

MLDB Libraries

Specifies project library that can be stored in an Model Library database (MLDB).

Devices

The following table describes the fields available on the Devices tab of the Power Manager Setup form.

Field Description

Library Name

Specifies the library to list the cells that will be registered as various device types.

Category

Specifies the types of cells in the specified library.

Cells

Specifies the list of cells that are available to be registered as various device types.

Device Type

Specifies the types of devices that can be used for registering the cells in a design.

Terminals

Specifies the list of device terminals of the cell, which has been already registered, for registration.

In-Design Checks

The following table describes the fields available on the In-Design Checks tab of the Power Manager Setup form.

Field/Section Description

Checks Categories

Specifies the severity level of the results reported for the Level Shifter, Isolation, and Bulk checks and provides the flexibility to add tolerance for power and ground rail supply net voltage values for level shifter checks.

Filters

Specifies filter patterns to filter some of the error and warning messages.

Supply States

Specifies supply states in a design. Use the Add Supply State form.

Use Supply States

Provides a choice to use supply states in a design.

Similar Violations Limit

Defines the maximum number of violations that are similar and should be reported. The default value is 1. If the value is 0, all similar violations are reported.

Violations for ports without attributes

Performs checks for the boundary ports that do not have any associated attributes, such as driver or receiver supply sets. By default, in-design checks do not report violations at the boundary ports unless information about the related power and ground nets of the boundary ports is specified using the registration information.

Violations for all net voltages

Reports violations for all net voltages specified in various supply states or different voltage values registered in the Registered Supply Nets table provided in the setup.

Isolation violations for always-on to switched supply crossings:

Reports violations for a missing isolation cell at the always-on to switched supply crossings.

Export

The following table describes the fields available on the Export tab of the Power Manager Setup form.

Section/Field Description

Supply Sets

Specifies a list of supply sets by making a power net and a ground net from the pair defined explicitly in the setup as a supply set.

Power Domains

Specifies a list of power domains associated with the different sections of the design addressed by a specific supply set.

Domain Name Prefix

Specifies the prefix of the names being assigned to the power domains.

Port Attributes

Specifies a list of ports to avoid ambiguities during the 1801 power intent extraction or the In-Design checks to associate the boundary ports to a power domain.

Consider inputOutput terms for internal power criterion

Identifies supply nets, meeting the LDO net detection criteria, even when the nets are connected to inout pin/term.

Consider inputOutput terms for monitor power criterion

Identifies supply nets, meeting the monitor net detection criteria, even when the nets are connected to inout pin/term.

Consider symmetrical source and drain for supply tracing

Defines a port with a predefined supply set or power domain that can be checked for the correct or compatible connection at the receiver side.

Use anonymous supply for top level ports

Enables the use of an anonymous supply for the top-level ports instead of the default supply set.

Miscellaneous

The following table describes the fields available on the Miscellaneous tab of the Power Manager form.

Field Description

Delimiter

Specifies specific notations for redirect netSets created during the 1801 import flow, automatically generated supply set and power domain names, and so on

Switch View List

Controls the order of the traversal of a design hierarchy during power intent extraction.

Stop View List

Defines the stop point where the design traversal must be stopped by the extractor during power intent extraction

Use Signal Type

Uses the sigType attribute of nets for detecting the supply nets during power intent extraction.

Load Setup From Environment

Loads the setup information from the environment. The project-level settings are considered as a part of the final setup.

Use Setup Changes From Environment

Uses setup changes from the environment setup. Any changes that are done to the project-level settings are read and updated.

Related Topics

Registering Name-Based Supply Nets

Registering Regular Expressions-Based Supply Nets

Registering Libraries

Registering Device and Cell

Registering Supply Set and Power Domain

Miscellaneous Settings


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