prga.netlist.module.module module¶

Netlist modules.

class prga.netlist.module.module.Module(name, *, key=None, is_cell=False, allow_multisource=False, coalesce_connections=False, instances=None, **kwargs)¶

Bases: prga.util.Object

A netlist module.

Parameters:

name (str) – Name of the module

Keyword Arguments:

key (Hashable) – A hashable key used to index this module in the database. If not set (default argument: None), name is used by default
is_cell (bool) – If set to True, this module is created as a cell module. A cell module does not contain information about connections. It contains information about timing arcs instead. A cell module may still contain sub-instances, but they are only used for tracking the hierarchy. When set, this argument overrides allow_multisource to False and coalesce_connections to True. coalesce_connections is forced to True because VPR does not support bitwise timing arcs for models.
allow_multisource (bool) – If set to True, a sink net may be driven by multiple source nets. Incompatible with coalesce_connections
coalesce_connections (bool) – If set to True, bit-wise connections are not allowed. Incompatible with allow_multisource
instances (MutableMapping [Hashable, Instance ]) – Custom instance mapping object. If not specified, a dict object will be created and used
**kwargs – Custom key-value arguments. These attributes are added to __dict__ of this object and accessible as dynamic attributes

class _FLAGS¶

Bases: enum.IntFlag

An enumeration.

ALLOW_MULTISOURCE = 2¶

COALESCE_CONNECTIONS = 4¶

IS_CELL = 1¶

NONE = 0¶

_add_child(child)¶

Add child into this module.

Parameters:	child (`Instance` or `Port`) –
Returns:	`child`

_children¶

_flags¶

_instances¶

_key¶

_name¶

_ports¶

allow_multisource¶

Test if sink nets in this module can be driven by more than one source nets.

Type:	`bool`

children¶

A mapping from names to sub-instances or ports in this module.

Type:	`Mapping` [`str`, `Instance` or `Port` ]

coalesce_connections¶

Test if bit-wise connections are disallowed in this module.

Type:	`bool`

instances¶

A mapping from keys to sub-instances in this module.

Type:	`Mapping` [`Hashable`, `Instance` ]

is_cell¶

Test if this module is a cell module.

Type:	`bool`

key¶

Key of this module in the database.

Type:	`Hashable`

name¶

Name of this module.

Type:	`str`

ports¶

A mapping from keys to ports in this module.

Type:	`Mapping` [`Hashable`, `Port` ]