abstract class Data extends HasId with NamedComponent with SourceInfoDoc
This forms the root of the type system for wire data types. The data value must be representable as some number (need not be known at Chisel compile time) of bits, and must have methods to pack / unpack structured data to / from bits.
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- Data
- SourceInfoDoc
- NamedComponent
- HasId
- InstanceId
- AnyRef
- Any
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- Public
- Protected
Instance Constructors
- new Data()
Abstract Value Members
- abstract def cloneType: Data.this.type
Internal API; Chisel users should look at chisel3.chiselTypeOf(...).
Internal API; Chisel users should look at chisel3.chiselTypeOf(...).
cloneType must be defined for any Chisel object extending Data. It is responsible for constructing a basic copy of the object being cloned.
- returns
a copy of the object.
- abstract def do_asUInt(implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): UInt
- abstract def litOption: Option[BigInt]
If this is a literal that is representable as bits, returns the value as a BigInt.
If this is a literal that is representable as bits, returns the value as a BigInt. If not a literal, or not representable as bits (for example, is or contains Analog), returns None.
- abstract def toPrintable: Printable
Default pretty printing
Concrete Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- final def :=(that: => Data)(implicit sourceInfo: SourceInfo, connectionCompileOptions: CompileOptions): Unit
The "strong connect" operator.
The "strong connect" operator.
For chisel3._, this operator is mono-directioned; all sub-elements of
thiswill be driven by sub-elements ofthat.- Equivalent to
this :#= that
For Chisel._, this operator connections bi-directionally via emitting the FIRRTL.<=
- Equivalent to
this :<>= that
- that
the Data to connect from
- Equivalent to
- final def <>(that: => Data)(implicit sourceInfo: SourceInfo, connectionCompileOptions: CompileOptions): Unit
The "bulk connect operator", assigning elements in this Vec from elements in a Vec.
The "bulk connect operator", assigning elements in this Vec from elements in a Vec.
For chisel3._, uses the
chisel3.internal.BiConnectalgorithm; sub-elements of thatmay end up driving sub-elements ofthis- Complicated semantics, hard to write quickly, will likely be deprecated in the future
For Chisel._, emits the FIRRTL.<- operator
- Equivalent to
this :<>= thatwithout the restrictions that bundle field names and vector sizes must match
- that
the Data to connect from
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- macro def asTypeOf[T <: Data](that: T): T
Does a reinterpret cast of the bits in this node into the format that provides.
Does a reinterpret cast of the bits in this node into the format that provides. Returns a new Wire of that type. Does not modify existing nodes.
x.asTypeOf(that) performs the inverse operation of x := that.toBits.
- Note
bit widths are NOT checked, may pad or drop bits from input
,that should have known widths
- final macro def asUInt: UInt
Reinterpret cast to UInt.
Reinterpret cast to UInt.
- Note
value not guaranteed to be preserved: for example, a SInt of width 3 and value -1 (0b111) would become an UInt with value 7
,Aggregates are recursively packed with the first element appearing in the least-significant bits of the result.
- def autoSeed(name: String): Data.this.type
Takes the last seed suggested.
Takes the last seed suggested. Multiple calls to this function will take the last given seed, unless this HasId is a module port (see overridden method in Data.scala).
If the final computed name conflicts with the final name of another signal, the final name may get uniquified by appending a digit at the end of the name.
Is a lower priority than suggestName, in that regardless of whether autoSeed was called, suggestName will always take precedence if it was called.
- returns
this object
- Definition Classes
- Data → HasId
- def binding: Option[Binding]
- Attributes
- protected[chisel3]
- def binding_=(target: Binding): Unit
- Attributes
- protected
- def circuitName: String
- Attributes
- protected
- Definition Classes
- HasId
- def clone(): AnyRef
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
- def do_asTypeOf[T <: Data](that: T)(implicit sourceInfo: SourceInfo, compileOptions: CompileOptions): T
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def equals(that: Any): Boolean
- Definition Classes
- HasId → AnyRef → Any
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- final def getWidth: Int
Returns the width, in bits, if currently known.
- def hasSeed: Boolean
- returns
Whether either autoName or suggestName has been called
- Definition Classes
- HasId
- def hashCode(): Int
- Definition Classes
- HasId → AnyRef → Any
- def instanceName: String
- Definition Classes
- HasId → InstanceId
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- def isLit: Boolean
- final def isWidthKnown: Boolean
Returns whether the width is currently known.
- def litValue: BigInt
Returns the literal value if this is a literal that is representable as bits, otherwise crashes.
- final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- def parentModName: String
- Definition Classes
- HasId → InstanceId
- def parentPathName: String
- Definition Classes
- HasId → InstanceId
- def pathName: String
- Definition Classes
- HasId → InstanceId
- def suggestName(seed: => String): Data.this.type
Takes the first seed suggested.
Takes the first seed suggested. Multiple calls to this function will be ignored. If the final computed name conflicts with another name, it may get uniquified by appending a digit at the end.
Is a higher priority than
autoSeed, in that regardless of whetherautoSeedwas called, suggestName will always take precedence.- seed
The seed for the name of this component
- returns
this object
- Definition Classes
- HasId
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- final def toAbsoluteTarget: ReferenceTarget
Returns a FIRRTL IsMember that refers to the absolute path to this object in the elaborated hardware graph
Returns a FIRRTL IsMember that refers to the absolute path to this object in the elaborated hardware graph
- Definition Classes
- NamedComponent → InstanceId
- final def toNamed: ComponentName
Returns a FIRRTL ComponentName that references this object
Returns a FIRRTL ComponentName that references this object
- Definition Classes
- NamedComponent → InstanceId
- Note
Should not be called until circuit elaboration is complete
- def toString(): String
- Definition Classes
- AnyRef → Any
- final def toTarget: ReferenceTarget
Returns a FIRRTL ReferenceTarget that references this object
Returns a FIRRTL ReferenceTarget that references this object
- Definition Classes
- NamedComponent → InstanceId
- Note
Should not be called until circuit elaboration is complete
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def widthOption: Option[Int]
Returns Some(width) if the width is known, else None.