On Monday 12 October 2009, Henry Margies wrote:
> By the way, I just found the BSDL file for the NS9360 CPU.
> Not sure if that is helping, but it says (things like): 
> 
> -- Specifies the number of bits in the instruction register.
>    
>    attribute INSTRUCTION_LENGTH of cooper: entity is 3;

So that's not the CPU itself being described ... it's the
boundary scan TAP.  I've seen this done in two ways:

 - Like Atmel does, with a signal controlling which TAP
   is exposed through the JTAG signals.  Developers use
   the "not boundary scan" option.  Production test uses
   the other one.

 - Like various other vendors.  The scan chain has two
   TAPs ... one for boundary scan, the other for ARM.

Doesn't the current code tell you how many TAPs it finds?
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