DK-DEV-5SGXEA7/ES Altera, DK-DEV-5SGXEA7/ES Datasheet - Page 413

• 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

Chapter 1: Transceiver Architecture in Stratix V Devices
10G PCS Architecture
May 2011 Altera Corporation
f
1
Figure 1–38. Scrambler
Disparity Generator
The disparity generator block is designed for the Interlaken protocol specification and
provides a DC-balanced data output. It receives data from the scrambler and inverts
the running disparity to stay within the ±96-bit boundary. To ensure this running
disparity requirement, it inverts bits [63:0] and sets bit 66 to indicate inversion.
The disparity generator is only used in the Interlaken configuration.
Table 1–16
Table 1–16. Interpretation of the MSB in the 67-Bit Payload for Stratix V Devices
Transmitter Gear Box
The transmitter gear box adapts the PCS data width to a smaller bus width for
interfacing with the PMA. Because of the transmitter gear box, the difference in the
bus widths between the PCS and PMA is made transparent to the logic in the FPGA
fabric.
For the supported PMA-PCS widths, refer to the
Stratix V Devices
Configurations in Stratix V Devices
MSB
Data from 64B/66B Encoder
Metaframes from CRC-32
0
1
Generator Blocks
Bits [63:0] are not inverted; the receiver may process this word without modification
Bits [63:0] are inverted; the receiver must invert the word to achieve the original word
before processing it
interprets the MSB of the 67-bit payload.
chapter. For custom configurations, refer to the
66
66
Programmable Initialization Seed
(Frame-Synchronous Mode)
(Self-Synchronous Mode)
chapter.
Scrambler
Scrambler
Scrambler
Interpretation
Transceiver Protocol Configurations in
Stratix V Device Handbook Volume 3: Transceivers
Scrambler Data to Disparity
Generator in Interlaken Configuration
Scrambler Data to TX
Gear Box in 10GBASE-R Configuration
Transceiver Custom
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