About relationshipp between R_pkg,C_pkg,L_pkg and R_dut, C_dut, L_dut

Hi,
    I found that the R_pkg,C_pkg,L_pkg and R_dut, C_dut, L_dut have the
very similar functions. But form the IBIS Specification V3.2, I found
they are different. So I am confused, and want to the relationship
between them.

Thanks in advance!

--
Best Regards.
Hai-long Wang
Tel:021-62837026x228
Avant! Shanghai R&D Center,  16th Floor, SunTong InfoPort Plaza
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