DK-DEV-4SGX230N Altera, DK-DEV-4SGX230N Datasheet - Page 920

• Manufacturer Part Number: DK-DEV-4SGX230N
• Description: KIT DEVELOPMENT STRATIX IV
• Manufacturer: Altera
• Series: Stratix® IVr
• Type: FPGAr

Specifications of DK-DEV-4SGX230N

• Contents: Development Board, Universal Power Supply, Cables and Software
• Silicon Manufacturer: Altera
• Core Architecture: FPGA
• Core Sub-architecture: Stratix
• Silicon Core Number: EP4S
• Silicon Family Name: Stratix IV GX
• Rohs Compliant: Yes
• For Use With/related Products: EP4SGX230K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 544-2594

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Stratix IV Device Handbook Volume 2: Transceivers
f
User logic can dynamically control the AEQ hardware in the receiver through the
dynamic reconfiguration controller. This section describes how to enable different
options and use them to control the AEQ hardware.
Adaptive Equalization Limitations
The following are the AEQ feature requirements and limitations:
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For more information about speed grade, data rates, receiver input signal level, and
other specifications that support the AEQ feature, refer to the
Characterization for Stratix IV Devices
Enabling the AEQ Control Logic and AEQ Hardware
To use the AEQ feature, enable the AEQ hardware in the ALTGX MegaWizard Plug-In
Manager and the AEQ control block in the ALTGX_RECONIG MegaWizard Plug-In
Manager. To enable the AEQ hardware and the AEQ control logic:
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When you select the above two options, the ALTGX and ALTGX_RECONFIG
MegaWizard Plug-In Managers provide the following additional ports:
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The aeq_fromgxb[] and aeq_togxb[] ports provide the interface between the receiver
channel and the dynamic reconfiguration controller.
The following section describes the connections between the AEQ control block of the
ALTGX_RECONFIG instance and the AEQ hardware of the ALTGX instance.
The receive data must be 8B/10B encoded
Not available in PCIe functional mode (because the AEQ hardware cannot
perform the equalization process when the receive link is under the electrical idle
condition)
The receiver input signal must have a minimum envelope of 400 mv (differential
peak-to-peak). The Quartus II software does not check for this requirement
The AEQ hardware is not present in the CMU channels
Select the Enable adaptive equalizer control option in the Reconfiguration
Settings screen of the ALTGX MegaWizard Plug-In Manager. The AEQ hardware
is available for each transceiver channel in the receiver data path.
Select the Enable adaptive equalizer control option in the ALTGX_RECONFIG
MegaWizard Plug-In Manager. The AEQ control logic is available in the dynamic
reconfiguration controller.
aeq_fromgxb[]
aeq_togxb[]
chapter.
Chapter 5: Dynamic Reconfiguration in Stratix IV Devices
Dynamic Reconfiguration Modes Implementation
February 2011 Altera Corporation
DC and Switching