Interface/unicast for test content, firmware, and software delivery

A method comprising:

• providing a scan test interface to perform a scan test for two or more circuit blocks;
• providing content received at input/output (IO signals) of the scan test interface to the two or more circuit blocks;
• and
• delivering a replicated content to multiple endpoints of the two or more circuit blocks.

An apparatus comprising:

• two or more circuit blocks;
• a first interface coupled to the two or more circuits blocks to decode packets to perform a scan test for the two or more circuit blocks;
• a second interface coupled to the two or more circuit blocks to provide to provide address and data-based access to the two or more circuit blocks;
• and
• circuitry coupled to input/output (IO) signals of the first interface and the second interface to decode packets received at the IO signals of the first interface and convert the decoded packets to provide content through the second interface for the two or more circuit blocks.