What is the SDF file contains?

[varatharajan]

From the below things what are all the delays will be specified inside the SDF file?
1. Flipflop clock to Q (Tcqff) delay ,
2. gate propagation delay,
3. interconnection between the net delay


rgrds
Varatharajan

 

[gliss]

All of those.

 

[drizzle]

anyone can show me a example for delay description?

thanks every body!

 

[eruisi]

One example:

(DELAY
(ABSOLUTE
(INTERCONNECT add_60\/U1_7/CO add_60\/U1_8/C (0.0001:0.0001:0.0001) (0.0001:0.0001:0.0001))
(INTERCONNECT z52/Y add_60\/U1_8/B (0.0008:0.0008:0.0008) (0.0008:0.0008:0.0008))

 

[anilkumarv]

SDF: standard delay format

It basically consists of timing information like setup time hold time etc

You refer the file attached for more information on sdf specification

 

[rascal1125]

In addition to above information, SDF files also includes two tpes "ABSOLUTE" and "INCREMENTAL"

Thanks