DK-DEV-4SGX230N Altera, DK-DEV-4SGX230N Datasheet - Page 495

• 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

Chapter 1: Transceiver Architecture in Stratix IV Devices
Transceiver Block Architecture
Figure 1–43. Receiver Channel Data Path Showing AEQ
February 2011 Altera Corporation
User Logic
reconfig_mode_sel[3:0]
f
Figure 1–43
Depending on the value you set for reconfig_mode_sel[3:0], the AEQ has three
modes of operation:
■
■
■
For more information about the AEQ port connections and various waveforms in all
the above modes, refer to the
EyeQ
The EyeQ hardware is available in Stratix IV GX and GT transceivers to analyze the
receiver data recovery path, including receiver gain, clock jitter and noise level. You
can use EyeQ to monitor the width of the incoming data eye and assess the quality of
the incoming signal.
Continuous mode—This feature is not supported.
One-time mode—The AEQ finds a stable setting of the receiver equalizer and
locks that value. After it is locked, the equalizer values are no longer changed. This
mode is available in one channel or all channels of the receiver. The
reconfig_mode_sel[3:0] = 1001 in this mode.
Powerdown mode—This feature is not supported.
Modes of Operation of the AEQ
ALTGX_RECONFIG
AEQ Control
shows the receiver channel data path with the AEQ feature.
Block
aeq_togxb[23:0]
aeq_togxb[47:24]
aeq_fromgxb[15:8]
aeq_fromgxb[7:0]
Dynamic Reconfiguration in Stratix IV Devices
busy
error
logical_channel_address = 0
logical_channel_address = 4
Receiver Channel 0
ALTGX Instance 2
Receiver Channel 1
ALTGX Instance 1
AEQ Hardware
AEQ Hardware
Stratix IV Device Handbook Volume 2: Transceivers
rx_datain[0]
rx_datain[1]
chapter.
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