Altera POS-PHY Level 2 and 3 Compiler Manuel d'utilisateur Page 32

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3–4 Chapter 3: Functional Description
Internal Architecture
POS-PHY Level 2 and 3 Compiler User Guide © November 2009 Altera Corporation
Preliminary
Figure 3–8 on page 3–4 shows the FPGA interfacing multiple POS-PHY level 2 devices
to an OC-48 switch.
Internal Architecture
The POS-PHY Level 2 and 3 Compiler comprises the following four MegaCore
functions:
POS-PHY level 2 link-layer
POS-PHY level 2 PHY-layer
POS-PHY level 3 link-layer
POS-PHY level 3 PHY-layer
Figure 3–7. Example Implementation
Level 3 Link
Interface
(Source)
Level 3 Link
Interface
(Sink)
OC48 Framer
User Logic
FPGA
MegaCore Function 1
MegaCore Function 1
PHY
PHY
Atlantic
Interfaces
Figure 3–8. Example Implementation 2
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