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Ethernet Module
Figure 23: MAC block diagram
Other modules in the diagram include:
MAC core — 10/100 Mbps media access controller. Performs the CSMA/CD
function and flow control functions. See ISO/IEC and IEEE Standard 802.3x
documentation for more information.
Host — Host interface. Provides a 16-bit interface for control and
configuration.
CLKRST — Clocks and resets. Provides a central location for clock trees and
reset logic.
MIIM — MII management. Provides a control/status path to MII PHYs.
SAL — Station address logic. Performs station address, broadcast, and
multicast filtering.
EFE
Host
MAC core
MCS TFUN
RFUN
SAL
Interface
MII
ENDEC
PMD
TX
RX
10/100
PHY
Mgmt
HOST CLKRST MIIM