DK-DEV-5SGXEA7/ES Altera, DK-DEV-5SGXEA7/ES Datasheet - Page 486

• Manufacturer Part Number: DK-DEV-5SGXEA7/ES
• Description: KIT DEV STRATIX V FPGA 5SGXEA7
• Manufacturer: Altera
• Series: Stratix® Vr
• Type: FPGAr

Specifications of DK-DEV-5SGXEA7/ES

• Contents: Board
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Stratix® V 5SGXEA7
• Other names: 544-2725

4–30
GIGE
Figure 4–20. 1000 Base-X PHY in a Gigabit Ethernet OSI Reference Model
Stratix V Device Handbook Volume 3: Transceivers
1
This section describes Gigabit Ethernet (GIGE) link implementation using Stratix V
transceivers. It provides the transceiver channel datapath, clocking, and channel
placement guidelines when configured in a GIGE configuration.
IEEE 802.3 defines the 1000 Base-X PHY as an intermediate, or transition, layer that
interfaces various physical media with the MAC in a GIGE system. It shields the MAC
layer from the specific nature of the underlying medium. The 1000 Base-X PHY,
which has a physical interface data rate of 1.25 Gbps, is subdivided into three
sublayers—the physical coding sublayer (PCS), physical media attachment (PMA),
and physical medium dependent (PMD). These sublayers interface with the MAC
through the gigabit medium independent interface (GMII).
Figure 4–20
model.
When configured in GIGE functional mode, Stratix V transceivers have built-in PCS
and PMA circuitry to support 8B/10B encoding and decoding, synchronization, rate
matching, CDR, and serialization and deserialization.
In the MegaWizard Plug-In Manager, you can implement a GIGE link by instantiating
the Custom PHY IP core and selecting the GIGE Preset under Transceiver PHY in the
Interfaces menu.
Stratix V transceivers do not have built-in hard-IP support for other PCS functions,
such as idle-ordered sets substitution, auto-negotiation state machine,
collision-detect, and carrier-sense. If required, these functions must be implemented
in a programmable logic device (PLD) logic array or external circuits.
Presentation
Model Layers
Application
Transport
Data Link
Reference
Physical
Session
Network
OSI
shows the 1000 Base-X PHY position in a Gigabit Ethernet OSI reference
GMII
Chapter 4: Transceiver Protocol Configurations in Stratix V Devices
MAC (Optional)
CSMA/CD Layers
Higher Layers
Reconciliation
Medium
PCS
MAC
PMA
PMD
LLC
LAN
1000 Base-X
PHY
May 2011 Altera Corporation
GIGE