"Cache Manager - Read Side"
In this diagram, we see instances of 3 components: RCMR, LBAL and DCMR. The last one, DCMR, is multiplexed 3 ways, for performance reasons.
LBAL is a load-balancing component: it forwards incoming packets to the downstream component that has the fewest packets in its input connection. It will only suspend if all of its output connections are full.
There are also 3 off-page connectors.
Port names are shown in blue.