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--- vlsi:workbook:analog:hierarchy [02/08/2013 13:51]
pacher creata
+++ vlsi:workbook:analog:hierarchy [18/08/2014 14:07] (versione attuale)
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@@ Linea 1: / Linea 1: @@
-====== Design hierarchy ======
+====== Design hierarchy in Cadence IC (Virtuoso) ======
 [ __[[vlsi:home|Home]]__ ]
-[ __[[vlsi:workbook|VLSI Design WorkBook]]__ ]
+[ __[[vlsi:workbook|Design WorkBook]]__ ]
-[ __[[vlsi:analog_main#contents|Back to index]]__ ]
+[ __[[vlsi:workbook:analog#contents|Back to index]]__ ]
@@ Linea 18: / Linea 18: @@
       * Opening an existing cell
       * Copying and deleting
       * Managing libraries with the Library Path Editor
+      * Cadence default libraries
 **Keywords:**
@@ Linea 87: / Linea 88: @@
 Cosa fondamentale, dal punto di vista UNIX sono **UNIX directories**
+===== Organizing libraries with categories =====
+[[http://www.ece.rice.edu/~cavallar/cadence/tutorial/library.html]]
+**File -> New -> Category ...**
+Show categories
 ===== Cell views =====
@@ Linea 115: / Linea 127: @@
 advanced simulations such as **corner analysis** and **Monte Carlo simulations**
 in **Virtuoso ADE XL** e gli stati sono salvati in a particular cell view of the type //adexl//
+**text**\\
+posso includere file plain text per la documentazione direttamente nella cella!
+File => New => Cell View e poi scelgo come Type **text**
@@ Linea 164: / Linea 183: @@
+Important! **attach vs. referencing** !!!
+attach = **static** technology database
+reference = **incremental technology database (ITDB)**
+For example, if you have to add a custom via or routing constraint
+you must modify this main PDK which may cause problems for other users.
+An ITDB is more flexible because updates can be made directly to the ITDB without effecting the base PDK.
+You can also define multiple ITDBs which reference the same base PDK.
 ===== Creating a new cell =====
@@ Linea 199: / Linea 228: @@
 Solo per dire che il ''cds.lib'' file lo posso editare anche via GUI
+====== Cadence IC default libraries ======
+Defined in the default ''cds.lib'' file
+''$IC_DIR/tools/dfII/local/cds.lib''
+<code>
+DEFINE analogLib        $IC_DIR/tools/dfII/etc/cdslib/artist/analogLib
+DEFINE functional	$IC_DIR/tools/dfII/etc/cdslib/artist/functional
+DEFINE sbaLib           $IC_DIR/tools/dfII/etc/cdslib/artist/sbaLib
+DEFINE basic            $IC_DIR/tools/dfII/etc/cdslib/basic
+DEFINE US_8ths          $IC_DIR/tools/dfII/etc/cdslib/sheets/US_8ths
+--
+DEFINE aExamples        $IC_DIR/tools/dfII/samples/artist/aExamples
+DEFINE ahdlLib          $IC_DIR/tools/dfII/samples/artist/ahdlLib
+DEFINE bmslib           $IC_DIR/tools/dfII/samples/artist/bmslib
+DEFINE passiveLib	$IC_DIR/tools/dfII/samples/artist/passiveLib
+DEFINE pllLib           $IC_DIR/tools/dfII/samples/artist/pllLib
+DEFINE pllMMLib         $IC_DIR/tools/dfII/samples/artist/pllMMLib
+DEFINE rfExamples	$IC_DIR/tools/dfII/samples/artist/rfExamples
+DEFINE rfLib            $IC_DIR/tools/dfII/samples/artist/rfLib
+DEFINE solutions        $IC_DIR/tools/dfII/samples/artist/solutions
+DEFINE training         $IC_DIR/tools/dfII/samples/artist/training
+--
+DEFINE ieLib            $IC_DIR/tools/dfII/samples/artist/mixSig/ieModels/ieLib
+DEFINE ieTest           $IC_DIR/tools/dfII/samples/artist/mixSig/ieTest/ieTestLib
+--
+DEFINE sample           $IC_DIR/tools/dfII/samples/cdslib/sample
+DEFINE ISO_2_5mm        $IC_DIR/tools/dfII/samples/cdslib/sheets/ISO_2_5mm
+DEFINE ISO_2mm          $IC_DIR/tools/dfII/samples/cdslib/sheets/ISO_2mm
+DEFINE US_10ths         $IC_DIR/tools/dfII/samples/cdslib/sheets/US_10ths
+DEFINE US_16ths         $IC_DIR/tools/dfII/samples/cdslib/sheets/US_16ths
+DEFINE substrateLib     $IC_DIR/share/sna/etc/cdslib/substrateLib
+DEFINE connectLib        $INCISIVE_DIR/tools/affirma_ams/etc/connect_lib/connectLib
+--
+-- DEFINE std $IC_DIR/tools/leapfrog/files/STD
+-- DEFINE ieee $IC_DIR/tools/leapfrog/files/IEEE
+-- DEFINE synergy $IC_DIR/tools/leapfrog/files/SYNERGY
+-- DEFINE xl $IC_DIR/tools/leapfrog/files/XL
+-- DEFINE valid $IC_DIR/tools/leapfrog/files/VALID
+-- DEFINE sim $IC_DIR/tools/leapfrog/files/SIM
+</code>
+Don't clutter your Library Manager with unused libraries!!! Include only necessary libraries indeed!