Packages

object Reg

Utility for constructing hardware registers

The width of a Reg (inferred or not) is copied from the type template

val r0 = Reg(UInt()) // width is inferred
val r1 = Reg(UInt(8.W)) // width is set to 8

val r2 = Reg(Vec(4, UInt())) // width is inferred
val r3 = Reg(Vec(4, UInt(8.W))) // width of each element is set to 8

class MyBundle {
  val unknown = UInt()
  val known   = UInt(8.W)
}
val r4 = Reg(new MyBundle)
// Width of r4.unknown is inferred
// Width of r4.known is set to 8
Source
Reg.scala
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  1. final def !=(arg0: Any): Boolean
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  4. def apply[T <: Data](t: T)(implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): T

    Construct a Reg from a type template with no initialization value (reset is ignored).

    Construct a Reg from a type template with no initialization value (reset is ignored). Value will not change unless the Reg is given a connection.

    t

    The template from which to construct this wire

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