Axi4RequestChannelInterface class abstract

Wrapper for commonality in AXI Request channels (AR, AW, etc.).

Inheritance
Implementers

Constructors

Axi4RequestChannelInterface({required String prefix, int idWidth = 4, int userWidth = 4, int addrWidth = 32, int lenWidth = 8, bool useLock = true, int sizeWidth = 3, int burstWidth = 2, int cacheWidth = 4, int protWidth = 3, int qosWidth = 4, int regionWidth = 4})
Constructor.

Properties

addr → Logic
The address of the first transfer in a transaction.
no setter
addrWidth → int
Width of the address bus.
final
burst → Logic?
Burst type, indicates how address changes between each transfer in a transaction.
no setter
burstWidth → int
Width of the burst field is fixed for AXI4.
final
cache → Logic?
Indicates how a transaction is required to progress through a system.
no setter
cacheWidth → int
Width of the cache field is fixed for AXI4.
final
hashCode → int
The hash code for this object.
no setterinherited
id → Logic?
Identification tag for transaction.
no setterinherited
idWidth → int
Number of channel ID bits.
finalinherited
len → Logic?
Length, the exact number of data transfers in a transaction.
no setter
lenWidth → int
Width of len field.
final
lock → Logic?
Provides information about atomic characteristics of a transaction.
no setter
main → bool
Helper to control which direction the signals should be coming from.
finalinherited
modify ↔ String Function(String original)?
A function that can be used to modify all port names in a certain way.
getter/setter pairinherited
ports → Map<String, Logic>
Maps from the Interface's defined port name to an instance of a Logic.
no setterinherited
prefix → String
Prefix string for port declarations
finalinherited
prot → Logic
Protection attributes of a transaction.
no setter
protWidth → int
Width of the prot field is fixed for AXI4.
final
qos → Logic?
Quality of service identifier for a transaction.
no setter
qosWidth → int
Width of the QoS field is fixed for AXI4.
final
ready → Logic
Indicates that a transfer on the channel can be accepted.
no setterinherited
region → Logic?
Region indicator for a transaction.
no setter
regionWidth → int
Width of the region field is fixed for AXI4.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
size → Logic?
Size, the number of bytes in each data transfer in a transaction.
no setter
sizeWidth → int
Width of the size field is fixed for AXI4.
final
subInterfaces → Map<String, PairInterface>
A mapping from sub-interface names to instances of sub-interfaces.
no setterinherited
useLock → bool
Controls the presence of lock which is an optional port.
final
user → Logic?
User-defined extension for the channel.
no setterinherited
userWidth → int
Number of user field bits.
finalinherited
valid → Logic
Indicates that the channel signals are valid.
no setterinherited

Methods

addSubInterface<PairInterfaceType extends PairInterface>(String name, PairInterfaceType subInterface, {bool reverse = false, String uniquify(String original)?}) → PairInterfaceType
Registers a new subInterface on this PairInterface, enabling a simple way to build hierarchical interface definitions.
inherited
clone() → PairInterface
Creates a new Interface with the same ports as this.
inherited
conditionalDriveOther(Interface<PairDirection> other, Iterable<PairDirection> tags) → Conditional
Makes this conditionally drive interface signals tagged with tags on other.
inherited
conditionalReceiveOther(Interface<PairDirection> other, Iterable<PairDirection> tags) → Conditional
Makes this signals tagged with tags be driven conditionally by other.
inherited
connectIO(Module module, Interface srcInterface, {Iterable<PairDirection>? inputTags, Iterable<PairDirection>? outputTags, Iterable<PairDirection>? inOutTags, String uniquify(String original)?}) → void
Calls Interface.connectIO for ports of this interface as well as hierarchically for all subInterfaces.
inherited
driveOther(Interface<PairDirection> other, Iterable<PairDirection> tags) → void
Makes this drive interface signals tagged with tags on other.
inherited
getPorts([Iterable<PairDirection>? tags]) → Map<String, Logic>
Returns all interface ports associated with the provided tags as a Map from the port name to the Logic port.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
pairConnectIO(Module module, Interface<PairDirection> srcInterface, PairRole role, {String uniquify(String original)?}) → void
A simplified version of connectIO for PairInterfaces where by only specifying the role, the input and output tags can be inferred.
inherited
port(String name) → Logic
Accesses a port named name.
inherited
receiveOther(Interface<PairDirection> other, Iterable<PairDirection> tags) → void
Makes this signals tagged with tags be driven by other.
inherited
setPorts(List<Logic> ports, [Iterable<PairDirection>? tags]) → void
Adds a collection of ports to this Interface, each associated with all of tags.
inherited
toString() → String
A string representation of this object.
inherited
tryPort(String name) → Logic?
Provides the port named name if it exists, otherwise null.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited