------------------------------------------------------------------------------- File Name: MODELS.txt Revision: v2.0 Description: This is the Readme File for the models provided in this IBIS AMI Evaluation Toolkit from Cadence Design Systems, Inc. Author: Ambrish Varma (c) Cadence Design Systems, Inc. ------------------------------------------------------------------------------- MODELS INCLUDED IN THIS TOOLKIT ------------------------------- There are 2 models included in this toolkit. They are the RX Continuous Time Filter (CTF) and is named IBIS_AMI_RX.dll and a simple Gain filter named IBIS_AMI_CHGAIN.dll. INTRODUCTION ------------ The RX model does not have clock recovery and has fixed coefficients. The INIT function in the model does not modify the impulse response. A waveform passed to the GetWave call will undergo equalization. In summary, -The model does not modify the impulse response in the init call. -It does not write a clk output. -Tested for 5.0 GBPS data rate. The CHGAIN filter is a simple model that simply multiplies the input wave by the gain factor (default is 2). MODIFYING THE MODELS -------------------- A very basic method of modifying the model is to vary the parameters that the model accepts. The parameters of the IBIS_AMI_RX.dll is stored in the .ami file IBIS_AMI_RX.ami . The parameters of the IBIS_AMI_CHGAIN.dll is stored in the .ami file IBIS_AMI_CHGAIN.ami . Advanced users can add or modify a function in the INIT or GetWave functions to alter the behavior of the model.