Intel® Arria® 10 Transceiver PHY User Guide

Download
ID 683617
Date 3/28/2022
Public
Document Table of Contents

8.5.3.1. XCVR_A10_RX_ADP_DFE_FXTAP

Description

The following assignments specify the coefficient of DFE fixed taps 1 through 11. These assignments are applicable only when the DFE is enabled and adaptation is disabled for the DFE (DFE operates in manual mode). The default value for all assignments is set to RADP_DFE_FXTAP<1 to 11>_0 for DFE fixed tap<1 to 11> coefficient setting 0. DFE tap1 in the only tap which is always positive and hence there is no QSF assignment for DFE tap1 sign bit. Other taps can be positive or negative.

Table 314.  DFE Fixed Tap Assignments

Assignment

Pin Planner or Assignment Editor Name

Value

Description

XCVR_A10_RX_ADP_DFE_FXTAP1

Receiver Decision Feedback Equalizer Fixed Tap One Coefficient

RADP_DFE_FXTAP1_<0 to 127>

DFE fixed tap 1 Coefficient Setting <0 to 127>

XCVR_A10_RX_ADP_DFE_FXTAP2

Receiver Decision Feedback Equalizer Fixed Tap Two Coefficient

RADP_DFE_FXTAP2_<0 to 127>

DFE fixed tap 2 Coefficient Setting < 0 to 127>

XCVR_A10_RX_ADP_DFE_FXTAP2_SGN

Receiver Decision Feedback Equalizer Fixed Tap Two Sign

RADP_DFE_FXTAP2_SGN_<0 or 1>

DFE fixed tap 2 coefficient sign 0 or 1

0 = Positive and 1=Negative

XCVR_A10_RX_ADP_DFE_FXTAP3

Receiver Decision Feedback Equalizer Fixed Tap Three Coefficient

RADP_DFE_FXTAP3_<0 to 127>

DFE fixed tap 3 Coefficient Setting <0 to 127>

XCVR_A10_RX_ADP_DFE_FXTAP3_SGN

Receiver Decision Feedback Equalizer Fixed Tap Three Sign

RADP_DFE_FXTAP3_SGN_<0 or 1>

DFE fixed tap 3 coefficient sign 0 or 1

0 = Positive and 1=Negative

XCVR_A10_RX_ADP_DFE_FXTAP4

Receiver Decision Feedback Equalizer Fixed Tap Four Coefficient

RADP_DFE_FXTAP4_<0 to 63>

DFE fixed tap 4 Coefficient Setting <0 to 63>

XCVR_A10_RX_ADP_DFE_FXTAP4_SGN

Receiver Decision Feedback Equalizer Fixed Tap Four Sign

RADP_DFE_FXTAP4_SGN_<0 or 1>

DFE fixed tap 4 coefficient sign 0 or 1

0 = Positive and 1=Negative

XCVR_A10_RX_ADP_DFE_FXTAP5

Receiver Decision Feedback Equalizer Fixed Tap Five Coefficient

RADP_DFE_FXTAP5_<0 to 63>

DFE fixed tap 5 Coefficient Setting <0 to 63>

XCVR_A10_RX_ADP_DFE_FXTAP5_SGN

Receiver Decision Feedback Equalizer Fixed Tap Five Sign

RADP_DFE_FXTAP5_SGN_<0 or 1>

DFE fixed tap 5 coefficient sign 0 or 1

0 = Positive and 1=Negative

XCVR_A10_RX_ADP_DFE_FXTAP6

Receiver Decision Feedback Equalizer Fixed Tap Six Coefficient

RADP_DFE_FXTAP6_<0 to 31>

DFE fixed tap 6 Coefficient Setting <0 to 31>

XCVR_A10_RX_ADP_DFE_FXTAP6_SGN

Receiver Decision Feedback Equalizer Fixed Tap Six Sign

RADP_DFE_FXTAP6_SGN_<0 or 1>

DFE fixed tap 6 coefficient sign 0 or 1

0 = Positive and 1=Negative

XCVR_A10_RX_ADP_DFE_FXTAP7

Receiver Decision Feedback Equalizer Fixed Tap Seven Coefficient

RADP_DFE_FXTAP7_<0 to 31>

DFE fixed tap 7 Coefficient Setting <0 to 31>

XCVR_A10_RX_ADP_DFE_FXTAP7_SGN

Receiver Decision Feedback Equalizer Fixed Tap Seven Sign

RADP_DFE_FXTAP7_SGN_<0 or 1>

DFE fixed tap 7 coefficient sign 0 or 1

0 = Positive and 1=Negative

XCVR_A10_RX_ADP_DFE_FXTAP8

Receiver Decision Feedback Equalizer Fixed Tap Eight Coefficient

RADP_DFE_FXTAP8_<0 to 63>

DFE fixed tap 8 Coefficient Setting <0 to 63>

XCVR_A10_RX_ADP_DFE_FXTAP8_SGN

Receiver Decision Feedback Equalizer Fixed Tap Eight Sign

RADP_DFE_FXTAP8_SGN_<0 or 1>

DFE fixed tap 8 coefficient sign 0 or 1

0 = Positive and 1=Negative

XCVR_A10_RX_ADP_DFE_FXTAP9

Receiver Decision Feedback Equalizer Fixed Tap Nine Coefficient

RADP_DFE_FXTAP9_<0 to 63>

DFE fixed tap 9 Coefficient Setting <0 to 63>

XCVR_A10_RX_ADP_DFE_FXTAP9_SGN

Receiver Decision Feedback Equalizer Fixed Tap Nine Sign

RADP_DFE_FXTAP9_SGN_<0 or 1>

DFE fixed tap 9 coefficient sign 0 or 1

0 = Positive and 1=Negative

XCVR_A10_RX_ADP_DFE_FXTAP10

Receiver Decision Feedback Equalizer Fixed Tap Ten Coefficient.

RADP_DFE_FXTAP10_<0 to 63>

DFE fixed tap 10 Coefficient Setting <0 to 63>

XCVR_A10_RX_ADP_DFE_FXTAP10_SGN

Receiver Decision Feedback Equalizer Fixed Tap Ten Sign

RADP_DFE_FXTAP10_SGN_<0 or 1>

DFE fixed tap 10 coefficient sign 0 or 1

0 = Positive and 1=Negative

XCVR_A10_RX_ADP_DFE_FXTAP11

Receiver Decision Feedback Equalizer Fixed Tap Eleven Coefficient

RADP_DFE_FXTAP11_<0 to 63>

DFE fixed tap 11 Coefficient Setting <0 to 63>

XCVR_A10_RX_ADP_DFE_FXTAP11_SGN

Receiver Decision Feedback Equalizer Fixed Tap Eleven Sign

RADP_DFE_FXTAP11_SGN_<0 or 1>

DFE fixed tap 11 coefficient sign 0 or 1

0 = Positive and 1=Negative

Example DFE Fixed Tap Assignment

Assignment: XCVR_A10_RX_ADP_DFE_FXTAP1

Value: RADP_DFE_FXTAP1_2

Description: DFE fixed tap 1 Coefficient Setting 2

Assign To

RX serial data pin.

Syntax

set_instance_assignment -name XCVR_A10_RX_ADP_DFE_FXTAP1 <value> -to <rx_serial_data pin name>

Did you find the information on this page useful?

Characters remaining:

Feedback Message