SCAN CHAIN

I am working with sequential circuits. I am using muxed d flip flop as scan flip flop. Can you please tell me what would be the scan input to the first scan flip flop in the scan chain.

In reply to ASHA PON:

I would read the JTAG fundamentals section of this page.

In reply to dave_59:

Thank you for the information. It is really useful and I am working in it.

In reply to dave_59:

Unable to open link. Is this link still working?

In reply to chetan_s:

Here is another one: fpga4fun.com - JTAG 1 - What is JTAG?