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IBIS Models Support in Eldo<br />

Supported Keywords and Sub-Parameters<br />

Netlist<br />

_IO_cmpnt1<br />

+ file="ebd.ibs"<br />

+ component="component1"<br />

.connect _io_cmpnt1_1_d_drive vdd ! ignored<br />

.connect _io_cmpnt1_1_d_enable vss ! input buffer<br />

.connect _io_cmpnt1_1_d_receive _io_cmpnt1_2_d_drive<br />

.connect _io_cmpnt1_2_d_enable vdd ! output buffer<br />

_IO_cmpnt2<br />

+ file="ebd.ibs"<br />

+ component="component1"<br />

.connect _io_cmpnt2_1_d_drive vdd ! ignored<br />

.connect _io_cmpnt2_1_d_enable vss ! input buffer<br />

.connect _io_cmpnt2_1_d_receive _io_cmpnt2_2_d_drive<br />

.connect _io_cmpnt2_2_d_enable vdd ! output buffer<br />

_IO_ebd1 file="ebd.ebd"<br />

+ ebd_model="EBD1"<br />

+ ref_des_map='u1=_IO_cmpnt1'<br />

+ ref_des_map='u2=_IO_cmpnt2'<br />

The netlist above instantiates two components and an EBD model. The components are located<br />

in the IBIS file ebd.ibs, and the EBD model is located in an EBD file ebd.ebd. The EBD model<br />

used is EBD1, specified within the [Begin Board Description] and [End Board Description]<br />

keywords. The ref_des_map statements inform Eldo that _IO_cmpnt1 in the netlist corresponds<br />

to u1 in the EBD file, and that _IO_cmpnt2 corresponds to u2.<br />

The example files are provided in the installed AMS tree: $MGC_AMS_HOME/examples/ibis/<br />

ebd.cir<br />

Figure 17-17 shows the connections between the IBIS components as described in the EBD file<br />

and the netlist.<br />

Figure 17-17. Electrical Board Description Example Connections<br />

Related Topics<br />

Electrical Board Description<br />

Supported Keywords and Sub-Parameters<br />

Supported Keywords and Sub-Parameters<br />

Eldo can simulate IBIS devices either individually or in the overall component.<br />

780<br />

Eldo® User's Manual, 15.3

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