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AddrmapNode

AddrmapNode is a template class that represents an addrmap component in SystemRDL.
AddrmapNode can contain RegNodes, MemNodes, RegFileNodes and other AddrmapNodes, but an AddrmapNode can only be contained within another AddrmapNode or can be a top AddrmapNode.

AddrmapNode​

AddrmapNode template has the following declarations:

AddrmapNode with PARENT_TYPE​

The following template is a general AddrmapNode which expect to be contained within another AddrmapNode. In case of read, write requests to this node, the requests will be forwarded to the containing node, as this node does not implement memory IO operations.

This template expects 2 parameters:

  • BASE is an address offset within containing AddrmapNode.
  • PARENT_TYPE is a type of the parent AddrmapNode, a specialization of the AddrmapNode where PARENT_TYPE==void is provided below.
template <uint32_t BASE, typename PARENT_TYPE = void>
class AddrmapNode;

Top AddrmapNode​

A special case of AddrmapNode is an addrmap node that is not contained within another AddrmapNode, but instead it implements the memory IO operations, and it ends the (getter, setter) call chain from lower levels of hierarchy. It has the following declaration:

template <uint32_t BASE>
class AddrmapNode <BASE, void> : public ArchIoNode;

As you can see it is a specialization of AddrmapNode where the PARENT_TYPE==void. The BASE parameter is the same.

In addition, the top AddrmapNode inherits an ArchIoNode, which is a class that provides memory IO operations of the platform.
ArchIoNode is expected to implement write32() and read32() methods.