Digi NS9215 - Manual (Page 263)

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E T H E R N E T C O M M U N I C A T I O N M O D U L E
Ethernet MAC
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MAC module
block diagram
MAC module
features
Feature Description
MAC Core 10/100 megabit Media Access Controller
Performs the CSMA/CD function.
MCS: MAC control sublayer
TFUN: Transmit function
RFUN: Receive function
HOST Host interface
Provides an interface for control and configuration.
CLK & Reset Clocks & resets
Provides a central location for clock trees and reset logic.
MIIM MII management
Provides control/status path to MII PHYs.
STAT Statistics module
Counts and saves Ethernet statistics.