Altera JNEye Manual do Utilizador descarregar pdf (Página 63)

• Equalization tab—For Arria 10 GX/SX/GT, Stratix V GX, and Arria V GZ devices, the DFE model is

embedded in the JNEye and is not configurable. For Custom and PCI-Express 8GT receivers, the

following options are provided.

Figure 2-39: JNEye Receiver Options: Equalization Configuration

• Algorithm—The DFE is adapted using the LMS algorithm and its variations.

• Step Size—Step size of the LMS algorithm. This parameter controls the speed of the LMS

adaptation. The default value is 0.01.

• DFE Tap Length—Number of DFE taps. This option is only available for Custom and PCI-Express

8GT receivers.

• Summation Node Model—JNEye supports two generic/custom summation node modeling

methods:

• 3dB Bandwidth (RC filter)—Use a first-order RC filter to perform low-pass filtering of the DFE

adjustment.

• S-parameter—Use your S-parameter file to specify a pulse-shaping filter. Only the differential

insertion loss (S

dd21

) is applied in the pulse shaping.

• Misc tab—Reserved. This tab is blank.

IBIS-AMI Receiver—JNEye supports IBIS-AMI receiver modeling. When you select the IBIS-AMI

receiver, the IBIS-AMI Receiver page appears. The IBIS-AMI page includes three tabs for additional

settings of the IBIS-AMI model.

UG-1146

2015.05.04

Receiver Options

2-57

Functional Description

Altera Corporation

Send Feedback

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 ... 193 194

Sem comentários

Altera JNEye Manual do Utilizador Página 63