ANALOGESD HELP

[savi]

I have used the following library for synthesis of the iopads using
Design Compiler (Synopsys).

L180_GII_1P6M_1_8V__3_3V/fsa0a_c/2008Q3v2.0/T33_ANALOGESD_IO/FrontEnd/
synopsys/fsa0a_c_t33_analogesd_io_tt1p8v25c.db

But it is giving the following warning and error when I compile.

Warning: IO pad 'XSCI0CUTD' is unusable: unknown logic function.
(OPT-1022)
Warning: IO pad 'XSCI0CUTC' is unusable: unknown logic function.
(OPT-1022)
Error: The target library does not contain an inverter.
An inverter is required for mapping. (OPT-101)

Can anyone please help me out.

Thanks

With regards
Savitha
M.tech(VLSI)
NITK,Surathkal

[VNIT]

Hello savi,

Do not bother for these warnning, this getting due to these are anaolg pads, doesn't have logic function, just check in your netlist & RTL shcematic for net connectivity is according to you have specified, It is not going to harm any thing your design

--
With regards,

VLSI Design and Research Lab,
VNIT, Nagpur.
http://ece.vnit.ac.in/vlsi/VLSI_LAB/VDRL.html

[ra...@nitt.edu]

Hello,
Analog ESD is using N_33_GII and P_33_GII transistors for
buffers/inverters which may not be available in your library and hence
the errors . No need to worry about that.
Reagrds
NITT
Quoting savi <savithas...@gmail.com>:

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