.ic
.ic v(node1) = val1 [v(node2) = val2] ... [v(noden) = valn] subckt=subckt_name depth=depth_val
Description
Specifies the initial voltage condition for nodes. The Spectre FX simulator forces the node voltage to the specified voltage at time=0. A node name can be hierarchical and can contain wildcards. The statement can be embedded within the scope of a subcircuit. In this case, the initial condition is assigned to the nodes local to the subcircuit. If a conflict occurs between an embedded IC and a hierarchical IC, the embedded one is considered.
Arguments
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Name
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Description
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v(node)
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Sets the initial voltage for a node. The node name can be hierarchical and can contain wildcards (for example, x?1.*.n*). In this case, the Spectre FX simulator assigns the initial condition to all the nodes that match the name.
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subckt
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Specifies the subcircuit name (by default, applies to the top level). If the statement is already used in a subcircuit definition, this parameter is ignored. Setting this parameter is equivalent to defining the statement within a subcircuit declaration.
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depth
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Specifies the depth in the circuit hierarchy to which a wildcard name applies. This parameter is available only when the * wildcard is used in the output variable. If set to 1, only the nodes at the current level are applied (the default value is infinity).
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Example
.ic v(n1) = 0.5 v(n2) = 1.5 subckt=inv
Tells the Spectre FX simulator to initialize node n1 to 0.5 V and node n2 to 1.5 V for all instances of the subcircuit inv.
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