AHBICM Model Reference Manual

http://www.cadfamily.com/a/EDA_PCB/ARM/AHBICM-Model-Reference-Manual_3777.html

This section provides a summary of the functionality of the model. Note that the
AHBICM model does not model an existing ARM IP, and therefore no comparisons
(functional nor accuracy) against existing hardware are mentioned in this section.
2.1 Functionality
AHBICM is an add-on component to the AMBA AHB slave device. AHBICM connects up
to 8 AHB layers to a single shared slave in order to allow the slave to be used in a multilayer AHB system where multiple AHB layers require access to the same slave. Multilayer AHB designs offer higher bandwidth since multiple layers can access different
slave devices in parallel.