eldo_user

IBIS Algorithmic Model Interface (AMI)
IBIS AMI models can be used in Eldo using the following syntax:
Syntax
_IO_xx mode=AMI
+ tx_file="tx_file_name.ibs"
+ [rx_file="rx_file_name.ibs"]
+ tx_model="tx_model_name"
+ [rx_model="rx_model_name"]
+ impulse_matrix="impulse_matrix_file"
+ [row_size=value]
+ [aggressors=value]
+ sample_interval=value
+ bit_time=value
+ input_waveform="input_wave_file"
Parameters
IBIS Models Support in Eldo
IBIS Algorithmic Model Interface (AMI)
• _IO_xx
IBIS instance name.
• mode=AMI
Specifies IBIS AMI mode.
• tx_file="tx_file_name.ibs"
IBIS filename that contains the TX IBIS model.
• rx_file="rx_file_name.ibs"
IBIS filename that contains the RX IBIS model.
• tx_model="tx_model_name"
IBIS model name that references the algorithmic model for the TX. The model name should
match one of the models in tx_file.
• rx_model="rx_model_name"
IBIS model name that references the algorithmic model for the RX. The model name should
match one of the models in rx_file.
• impulse_matrix="impulse_matrix_file"
References a file that contains the channel impulse response matrix. As defined in the IBIS
specifications, the impulse values are in Volts and are uniformly spaced in time. The sample
spacing is given by the parameter sample_interval.
The impulse matrix is stored in a single dimensional array of floating point numbers which
is formed by concatenating the columns of the impulse response matrix, starting with the
first column and ending with the last column. The matrix elements can be identified using:
impulse_matrix[idx] = element (row, col)
idx = col × number_of_rows + row
Eldo® User's Manual, 15.3 787