Class

Chisel

AsyncFifo

Related Doc: package Chisel

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class AsyncFifo[T <: Data] extends Module

Asynchronous Fifo. Used to cross two clock domains.

Source
ChiselUtil.scala
Linear Supertypes
Module, Nameable, AnyRef, Any
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Inherited
  1. AsyncFifo
  2. Module
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Visibility
  1. Public
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Instance Constructors

  1. new AsyncFifo(gen: T, entries: Int, enq_clk: Clock, deq_clk: Clock)

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    gen

    the type of data in the fifo

    entries

    the max number of entries in the fifo. The actual size will be rounded up to the next power of 2 - (size = 1<<log2Up(entries))

    enq_clk

    clock for the input (writing, queuing) side

    deq_clk

    clock for the output (reading, dequeuing side) side

Type Members

  1. type neededWireWraps = HashMap[StackTraceElement, ArrayBuffer[Data]]

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    verifyWireWrap (Chisel3) - verify assignment semantics (type-only nodes must be wire-wrapped)

    verifyWireWrap (Chisel3) - verify assignment semantics (type-only nodes must be wire-wrapped)

    returns

    - HashMap of source lines (and associated nodes) requiring Wire() wrapping.

    Definition Classes
    Module

Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any
  3. def <>(src: Module): Unit

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    Connect io with matching names for two modules

    Connect io with matching names for two modules

    Definition Classes
    Module
  4. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  5. var _clock: Option[Clock]

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    Definition Classes
    Module
  6. def addClock(clock: Clock): Unit

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    Add a clock to the module

    Add a clock to the module

    clock

    the clock to add

    Definition Classes
    Module
  7. def addDefaultReset: Unit

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    Add a default reset to the module

    Add a default reset to the module

    Definition Classes
    Module
  8. def addModule[T <: Module](c: ⇒ T)(implicit p: Parameters = params): T

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    Add a submodule to this module

    Add a submodule to this module

    Definition Classes
    Module
  9. def addModule[T <: Module](c: ⇒ T, f: PartialFunction[Any, Any]): T

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    Add a submodule to this module

    Add a submodule to this module

    Definition Classes
    Module
  10. def addNode[T <: Node](node: T): T

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    Definition Classes
    Module
  11. def addPin[T <: Data](pin: T, name: String = ""): T

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    Add a pin with a name to the module

    Add a pin with a name to the module

    pin

    the I/O to add

    name

    A name for the pin

    Definition Classes
    Module
  12. def addResetPin(r: Bool): Bool

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    returns

    the pin connected to the reset signal or creates a new one if no such pin exists

    Definition Classes
    Module
  13. def apply(name: String): Data

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    Definition Classes
    Module
  14. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  15. val asize: Int

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  16. def assert(cond: Bool, message: String = ""): Unit

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    Add an assertion in the code generated by a backend.

    Add an assertion in the code generated by a backend.

    Definition Classes
    Module
  17. def bfs(visit: (Node) ⇒ Unit): Unit

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    A breadth first search of the graph of nodes

    A breadth first search of the graph of nodes

    Definition Classes
    Module
  18. val children: ArrayBuffer[Module]

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    Definition Classes
    Module
  19. def clock: Clock

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    returns

    the implied clock for this module

    Definition Classes
    Module
  20. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  21. def debug(data: Aggregate): Unit

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    Definition Classes
    Module
  22. def debug(x: Node): Unit

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    Insures a backend does not remove a signal because it is unreachable from the outputs.

    Insures a backend does not remove a signal because it is unreachable from the outputs.

    Definition Classes
    Module
  23. def dfs(visit: (Node) ⇒ Unit): Unit

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    A depth first search of the graph of nodes

    A depth first search of the graph of nodes

    Definition Classes
    Module
  24. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  25. def equals(that: Any): Boolean

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    Definition Classes
    Module → AnyRef → Any
  26. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  27. def findBinding(m: Node): Option[Binding]

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    A method to trace the graph of nodes backwards looking at inputs

    A method to trace the graph of nodes backwards looking at inputs

    m

    Node to find bindings for

    returns

    nodes which have node m binded as their input

    Definition Classes
    Module
  28. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  29. def getPathName(separator: String = "_"): String

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    separator

    The separator to use for the path name

    returns

    the absolute path to a component instance from toplevel

    Definition Classes
    Module
  30. def getPathName: String

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    returns

    the absolute path to a component instance from toplevel

    Definition Classes
    Module
  31. val hashCode: Int

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    Definition Classes
    Module → AnyRef → Any
  32. val io: QueueIO[T]

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    the I/O for this module

    the I/O for this module

    Definition Classes
    AsyncFifoModule
  33. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  34. val mem: Mem[T]

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  35. var moduleName: String

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    Name of the module this component generates (defaults to class name).

    Name of the module this component generates (defaults to class name).

    Definition Classes
    Module
  36. var name: String

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    Name of the instance.

    Name of the instance.

    Definition Classes
    Nameable
  37. var named: Boolean

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    named is used to indicate that name was set explicitly and should not be overriden

    named is used to indicate that name was set explicitly and should not be overriden

    Definition Classes
    Nameable
  38. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  39. def nextIndex: Int

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    Definition Classes
    Module
  40. val not_empty: Bool

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  41. val not_empty_next: Bool

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  42. val not_full: Bool

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  43. val not_full_next: Bool

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  44. final def notify(): Unit

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    Definition Classes
    AnyRef
  45. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
  46. lazy val params: Parameters

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    Definition Classes
    Module
  47. var parent: Module

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    Definition Classes
    Module
  48. def printf(message: String, args: Node*): Unit

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    Adds a printf to the module called each clock cycle

    Adds a printf to the module called each clock cycle

    message

    A c style sting to print out eg) %d, %x

    args

    Nodes whos data values should be printed

    Definition Classes
    Module
  49. def reset: Bool

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    returns

    the implied reset for this module

    Definition Classes
    Module
  50. val rptr_bin: UInt

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  51. val rptr_bin_next: UInt

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  52. val rptr_gray: UInt

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  53. val rptr_gray_next: UInt

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  54. val s1_rptr_gray: UInt

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  55. val s1_rst_deq: Bool

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  56. val s1_rst_enq: Bool

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  57. val s1_wptr_gray: UInt

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  58. val s2_rptr_gray: UInt

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  59. val s2_rst_deq: Bool

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  60. val s2_rst_enq: Bool

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  61. val s2_wptr_gray: UInt

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  62. def setModuleName(n: String): Unit

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    Set the declaration name of the module to be string 'n'

    Set the declaration name of the module to be string 'n'

    Definition Classes
    Module
  63. def setName(n: String): Unit

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    Set the name of this module to the string 'n'

    Set the name of this module to the string 'n'

    Definition Classes
    Nameable
    Example:
    1. my.io.node.setName("MY_IO_NODE")
  64. def stripComponent(s: String): String

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    Definition Classes
    Module
  65. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  66. def toString(): String

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    Definition Classes
    Module → AnyRef → Any
  67. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  68. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  69. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  70. def wires: Array[(String, Bits)]

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    Get the I/O names and connections

    Get the I/O names and connections

    Definition Classes
    Module
  71. val wptr_bin: UInt

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  72. val wptr_bin_next: UInt

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  73. val wptr_gray: UInt

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  74. val wptr_gray_next: UInt

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Inherited from Module

Inherited from Nameable

Inherited from AnyRef

Inherited from Any

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