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Help me read this timing analysis

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p_shinde

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hi,

pls interpret how to read this followind data i got from the sdf file .


(CELL
(CELLTYPE "AOI21X1")
(INSTANCE DTMF_INST/ULAW_LIN_CONV_INST/i_150)
(DELAY
(ABSOLUTE
(IOPATH A0 Y (0.3143:0.3143:0.3143) (0.2021:0.2021:0.2021))
(IOPATH A1 Y (0.3061:0.3061:0.3061) (0.1634:0.1634:0.1634))
(IOPATH B0 Y (0.2911:0.2911:0.2911) (0.1695:0.1695:0.1695))
)
)

thanks in advance,
Prasad
 

Re: timing analysis

In order to understand all of SDF syntax,
please refer to IEEE Standard 1497-2001 for SDF (standard delay format.)
------------------------------------------------------------------------------------------
 

Re: timing analysis

This is a cell delay.

cell reference name is "AOI21X1"
cell instance name is "DTMF_INST/ULAW_LIN_CONV_INST/i_150"
Delay type is absolute, not incremental.

The max 0->1 delay from A0 pin to Y pin is 0.3143
The typical 0->1 delay from A0 pin to Y pin is 0.3143
The min 0->1 delay from A0 pin to Y pin is 0.3143

The max 1->0 delay from A0 pin to Y pin is 0.2021
The typical 1->0 delay from A0 pin to Y pin is 0.2021
The min 1->0 delay from A0 pin to Y pin is 0.2021
 
timing analysis

The description of "johnz" is exact.
In addition, the 0->1 and 1->0 aim at the Y.
 

Re: timing analysis

I did n't get this information, plz explain me bit detail
 

timing analysis

Hi energeticdin
Johnz explanation is clear,I think you'd better see sdf document for more details.
 

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