What are site and slot in physical library .lef file?

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designer_ec

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Hi ,
Let me know what are "site" and "slot" in physical library "lef file".Just I want to know purpose of site and slot,and meaning of site and slot
 

Re: site & slot

Hai Dude,

Site is an LEF syntax which defines a placement site in the design. A placement site gives the placement grid for a family of macros, such as I/O, core, block, analog, digital, short, tall, and so forth.

Example
CLASS {PAD | CORE}: Specifies whether the site is an I/O pad site or a core site.

similarly for size Widht by height and site name, or some of other examples

SLOT is a DEF syntax d which defines the rectangular shapes that form the slotting of the wires in the design. Each slot is defined as an individual rectangle.

Example
LAYER layerName :- Specifies the layer on which to create slots.

similarly SLOT num and RECT pt pt are some of other examples.

Phutane
 

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