Xilinx 7 Series - Page 130

130 www.xilinx.com 7 Series FPGAs GTP Transceivers User Guide
UG482 (v1.9) December 19, 2016
Chapter 4: Receiver
Table 4-5: Use Mode 3—RX Termination
Use
Mode
External AC
Coupling
Term
Voltage
Max Swing
mV
DPP
Suggested Protocols and Usage Notes
3 On 800 mV 2,000
Protocols:
• Optical IF (SONET/SDH/OTU)
•HD/SD-SDI
• XAUI (1,600 mV
DPP
)
•GbE
•PCIe
• Interlaken
Attribute Settings:
• RX_CM_SEL[1:0] = 2'b11
• RXLPM_INCM_CFG = 1'b1
• RXLPM_IPCM_CFG = 1'b0
• RX_CM_TRIM[3:0] = 4'b1010
X-Ref Target - Figure 4-5
Figure 4-5: Use Mode 3
+
–
~100 nF
50Ω
50Ω
~100 nF
FPGABOARD
ACJTAG RX
ACJTAG RX
MGTAVTT
MGTAVTT
MGTAVTT
RX_CM_SEL [1:0] = 2'b11
UG482_c4_115_020413
RX_CM_TRIM[3:0]
Varies from
4'b0000 – 4'b1111
800mV = 4'b1010
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