| Author |
Message |
quan228228
Joined: 23 Mar 2006
Posts: 212
Helped: 12
|
 12 May 2008 1:34 DC command: set_attribute ? |
|
|
|
I am confused about SYNTHESIS command "set_attribute". What does this command do?
Could anyone explain this detailed ? thanks thanks!!
David
|
|
| Back to top |
|
 |
sree205
Joined: 13 Mar 2006
Posts: 371
Helped: 28
|
| 12 May 2008 7:39 DC command: set_attribute ? |
|
|
|
its pretty self explanatory. sets the attribute of either cells/nets/pin/port or in general any object's attribute is set using this command.
For example, if the object is a cell, we can constrain the area of a cell using this command
set_attribute cell(object_list) area(object_name) 20(attribute)
To get an idea of what attribute can be set to these objects, look at the man page for the attribute in dc_shell.
|
|
| Back to top |
|
|
surisingh
Joined: 14 Jun 2007
Posts: 19
Helped: 1
|
| 12 May 2008 20:17 Re: DC command: set_attribute ? |
|
|
|
Hi,
To change a Maximum fan-out value specified for the pin 'Z' of a cell "BUFF0" of library BUF from 4.0 to 2.0, use the set_attribute command.
set_attribute [get_pins BUF/BUFF0/Z] max_fanout 2
This is useful for cases, where a global change is required.
Regards,
CSuresh
|
|
| Back to top |
|
|
