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questions about APB advantages

jiunyan jiunyan
Note: This was originally posted on 8th November 2008 at http://forums.arm.com

Hi! dear all  :lol:
Some APB advantages are listed in AMBA 2.0 spec. They are

"¢ performance is improved at high-frequency operation
"¢ performance is independent of the mark-space ratio of the clock
"¢ static timing analysis is simplified by the use of a single clock edge
"¢ no special considerations are required for automatic test insertion
"¢ many Application-Specific Integrated Circuit (ASIC) libraries have a better
selection of rising edge registers
"¢ easy integration with cycle based simulators.

I do not understand these advantages very well. ;)  Especially about
no special considerations are required for automatic test insertion. What dose this description mean? Can anyone tell me if you know? Thanks very much. :lol:
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