implementing jtag to drive a micro

Development Boards MicroMod
1

I have a project where a micro (arm or avr) must drive jtag signal to drive another micro AT91SAM7X. No debug feature is needed. Only load a firmware in sram or program it into the flash.

Where can I find information about how jtag works?

I know that there exist in ieee standard, but it is too detailed, and debug oriented.

thanks

2

ARM has details on their web site.

Leon

3

leon_heller:
ARM has details on their web site.

Unfortunately it seems that ARM documentation is debug oriented. BTW it refers to ieee standard that is debug oriented too.

thanks