NS9360B-0-C177 Datasheet, PDF (24/68 Pages) List of Unclassifed Manufacturers – This table lists the key features of the NS7520

Ethernet controller
The MAC module interfaces to an external physical layer (PHY) device using the MII standard
defined by IEEE 802.3u. The MAC interface includes the MII clock and data signals.
Figure 4 shows a high-level block diagram of the EFE module, which provides the FIFO handling
interface between the NS7520 BBus and the MAC modules.
MAC RX interface
MAC TX interface
RX
filtering &
statistics
512
byte
local
Transmit
FIFO
2K
byte
Local
Receive
FIFO
BBus
Figure 4: EFE module block diagram
20
NS7520 Datasheet 03/2006