Question about Synthesis in DC/DA of Synopsys

[bajahaya]

Hello all,

I would like to clarify a query.

1) Can you tell me the reason for specifiying the Delay's(Input and Output) for any entity before the synthesis is done ? What is the reason behind that?

2) Do we have any automatic insertion of buffers for the input/output port for an entity during synthesis ?

Thanks in advance,

Regards,
ALI

 

[Atre]

Hello all,

I would like to clarify a query.

1) Can you tell me the reason for specifiying the Delay's(Input and Output) for any entity before the synthesis is done ? What is the reason behind that?

Because they are defining the goals of your synthesis. You can do a syntheis without any specified IO delay, but this would not be realistic.

2) Do we have any automatic insertion of buffers for the input/output port for an entity during synthesis ?

Thanks in advance,

Regards,
ALI

What do you mean by "automatic buffers insertion" ?
Are you reffering to IO pads?

Please clarify!

 

[bajahaya]

Yes, Buffer Insertion what i mean is to drive for I/O Pads from the core ?

 

[Atre]

Yes, Buffer Insertion what i mean is to drive for I/O Pads from the core ?

DC has the capability to insert automatically pads for your ports. Please reffer to SOLD about inserting pads.

 

[shankarmit]

yes we need pad to be placed.. since this pins are going to contact direct environment.. pad are analog parts which will do noise supression and increase drive strength

Regards
Shankar