Enabling Raw Mode - Xilinx Virtex-6 FPGA User Manual

Gth transceivers
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Chapter 3: Transmitter

Enabling Raw Mode

Follow these steps to enable the Raw mode in the GTH transmitter:
1.
2.
92
If the transmit fabric data width is configured to 16 bits, 32 bits, or 64 bits
a.
Set PCS_MODE_LANE<n>[3:0] to 4'b1010.
b. Set PCS_RESET_LANE<n> to 0xFF3B.
c.
Set PCS_RESET_1_LANE<n>[1:0] to 2'b00.
d. Set TX_FABRIC_WIDTH<n> to "16", "32", or "64."
If the transmit fabric data width is configured to 20 bits, 40 bits, or 80 bits
a.
Set PCS_MODE_LANE<n>[3:0] to 4'b1011.
b. Set PCS_RESET_LANE<n> to 0xFF3B.
c.
Set PCS_RESET_1_LANE<n>[1:0] to 2'b00.
d. Set TX_FABRIC_WIDTH<n> to "20", "40", or "80."
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Virtex-6 FPGA GTH Transceivers User Guide
UG371 (v2.0) February 16, 2010

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