Altera Triple Speed Ethernet MegaCore Function Manual do Utilizador Página 10

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Small MAC10/100/1000 Ethernet MACFeature
Limited programmable options. The following options
are fixed:
Maximum frame length is fixed to 1518. Jumbo
frames are not supported.
FIFO buffer thresholds are set to fixed values.
Store and forward option is not available.
Interpacket gap is set to 12.
Flow control is not supported; pause quanta is not in
use.
Checking of payload length is disabled.
Supplementary MAC addresses are disabled.
Padding removal is disabled.
Sleep mode and magic packet detection is not
supported.
Fully programmableControl
interface
registers
Limited configurable options. The following options are
NOT available:
Flow control
VLAN
Statistics counters
Multicast hash table
Loopback
TBI and 1.25 Gbps serial interface
8-bit wide FIFO buffers
Fully configurableSynthesis
options
High-Level Block Diagrams
High-level block diagrams of different variations of the Triple-Speed Ethernet MegaCore function.
Figure 1-1: 10/100/1000-Mbps Ethernet MAC
10/100/1000-Mbps
Ethernet MAC
MII/GMII/RGMII
Client Side
Network Side
Avalon-ST
(Transmit and Receive)
Avalon-MM
(Management and Control)
Altera Corporation
About This MegaCore Function
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1-3
High-Level Block Diagrams
UG-01008
2014.06.30
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