ARM7TDMI or Cortex-M3 board - which should I consider?

If I have two ARM7TDMI core board and Cortex M3 core board, and I need to choose one of them to use. What should I consider the different between them and why?
AXI channel handshake process

for a VALID before READY handshake process in AXI channel, AXI reference manual states that "A source is not permitted to wait until READY is asserted before asserting VALID" Guide me with this statement...
How to process raw data from monitor and convert it into set of commands + data exchange?

I have designed a protocol checker. Now I have to " process raw data from monitor to convert transactions recorded at data link layer in to set of command+data exchange at one level higher ". But I am...
JTAG/SWD and entering debug monitor

How does a JTAG/SWD debugger know when BKPT is executed? My guess is that BKPT triggers entry to debug monitor and entering debug monitor sets something in the debug port, but what, and how does a debugger...
Arm Coresight : Post process for trace

How does post process work for trace verification ?