Differenze
Queste sono le differenze tra la revisione selezionata e la versione attuale della pagina.
| Entrambe le parti precedenti la revisione Revisione precedente Prossima revisione | Revisione precedente Ultima revisione Entrambe le parti successive la revisione | ||
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vlsi:workbook:analog:hierarchy [07/01/2014 14:51] pacher |
vlsi:workbook:analog:hierarchy [18/08/2014 14:05] pacher |
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| Linea 18: | Linea 18: | ||
| * Opening an existing cell | * Opening an existing cell | ||
| * Copying and deleting | * Copying and deleting | ||
| - | * Managing libraries with the Library Path Editor | + | * Managing libraries with the Library Path Editor |
| + | * Cadence default libraries | ||
| **Keywords:** | **Keywords:** | ||
| Linea 182: | 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 ===== | ===== Creating a new cell ===== | ||