Mac architecture, Mac architecture -2 – Altera Triple Speed Ethernet MegaCore Function User Manual
Page 38
MAC Architecture
Figure 4-1: 10/100/1000 Ethernet MAC With Internal FIFO Buffers
Receive
FIFO Buffer
Transmit
FIFO Buffer
Configuration and
Statistics
MDIO Master
CRC Check
Pause
Frame
Termination
MII/GMII /RGMII
Receive
Local
Loopback
Receiver Control
MII/GMII /RGMII
Transmit
PHY
Management
Interface
Control Interface
(Avalon -MM)
Magic Packet
Detection
Ethernet Side
System Side
CRC
Generation
Pause
Frame
Generation
Transmitter Control
MAC Transmit
Interface
(Avalon-ST)
MAC Receive
Interface
(Avalon-ST)
10/100/1000 Ethernet MAC with Internal FIFO Buffers
The FIFO buffers, which you can configure to 8- or 32-bits wide, store the transmit and receive data. The
buffer width determines the data width on the Avalon-ST receive and transmit interfaces. You can configure
the FIFO buffers to operate in cut-through or store-and-forward mode using the
rx_section_full
and
tx_section_full
registers.
Functional Description
Altera Corporation
UG-01008
MAC Architecture
4-2
2014.06.30
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