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Figure 10-4. Program Memory Breakpoint Logic
cific point to examine/change registers or memory. Using address comparators to set breakpoints enables
the user to set breakpoints in RAM or ROM and while in any operating mode.
The low address comparator will cause a logic true signal when the address on the bus is greater than or
equal to the low boundary. The high address comparator will cause a logic true signal when the address on
the bus is less than or equal to the high boundary. If the low address comparator and high address compar-
ator both issue a logic true signal, the address is within the address range and the breakpoint counter is
decremented if the contents are greater than zero. If zero, the counter is not decremented and the break-
point exception occurs.
Conditional jump addresses produced by the instruction pipeline that are within a program address block
being monitored are only valid if the conditional jump instruction occurs, otherwise the conditional jump ad-
MOTOROLA
DSP96002 USER'S MANUAL
10 - 7
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