why D-type master slave flip flops are used for scan insertion?

[anjugeorge5u]

Hi,
Can you please tell me why we are using only D-type flip flops in scan insertion? what is the draw backs if we use any other flip flop?

Thanks and Regards,
Anju.

 

[ranger01]

If you have a scan-enable model for "other flip flops" you can always use them.

Finally,what matters in scan insertion, is only the testability of sequential cells

 

[anjugeorge5u]

Thanks a lot..