3.6.2. Default behavior of EmbeddedICE watchpoint
comparator inputs
When the EmbeddedICE Behavior Control Register is not implemented, Table 3.4 defines the behavior
of any EmbeddedICE watchpoint comparator input connection to the
different PTM resources.
Table 3.4. Default behavior of EmbeddedICE watchpoint comparator inputs
| Resource driven by EmbeddedICE watchpoint comparator
input | Behavior of input |
|---|
| Trigger event | Pulse |
| TraceEnable event | Latch |
| Trace start/stop block input | Pulse |
| Counter enable or reload event | Pulse |
| Sequencer state change event | Pulse |
| External output | Pulse |
Note
A debugger can read bit [21] of the Configuration Code Extension
Register to find whether the EmbeddedICE Behavior Control Register
is implemented:
if the register is
not implemented the debugger can assume the EmbeddedICE watchpoint
comparator inputs behave as shown in Table 3.4
if the register is implemented the debugger must
write to the register to configure the behavior of each EmbeddedICE
watchpoint comparator input, as required for the use it is making
of the input.
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