2.11 Node ID mapping
The following figure shows a CCN-502 interconnect with node ID and XP ID identifiers.
The identifiers are indicated as follows:
- Node ID identifiers in the corner of each component attached to an XP
device port. The node ID identifier is important because all transactions to and from a
device include this node ID as a Source Identifier (SrcID) or
Target Identifier (TgtID) in the transactions flits. The node
IDs are also included as an identifier in the CCN-502 interface signals.
- XP ID identifiers in the corner of each XP. The XP ID identifier is used
to determine XP configuration register addresses and to configure debug watchpoints and
Figure 2-5 CCN-502 system
with node and XP IDs