The M-AHBE™ module from Mentor Graphics provides a DMA bridge between a host system that uses an AMBAAHB™ bus and Ethernet MACs available in the Mentor Graphics Ethernet IP library. Use of the M-AHBE module also requires the
use of a suitable FIFO alongside the Ethernet MAC.
The M-AHBE module interfaces to the host system through 32-bit AHB master
and slave ports. On the MAC side of the module, it has a high-performance
synchronous interface for DMA data transfer to/from the FIFO and a semisynchronous interface for configuring the MAC and the FIFO through their HST