dsp56800e Freescale Semiconductor, Inc, dsp56800e Datasheet - Page 334

• Manufacturer Part Number: dsp56800e
• Description: 16-bit Digital Signal Controller Core
• Manufacturer: Freescale Semiconductor, Inc

JTAG and Enhanced On-Chip Emulation (Enhanced OnCE)
The final Breakpoint Unit trigger will then be one of the following:
11.4.4.3.2
Table 11-11 shows the actions which can be performed when the Capture Counter expires. Note the
unusual triggering which can be performed to check that the counter expires before a Stop trigger arrives.
Similarly, the reverse triggering is also supported - trigger only if the Stop trigger arrives before the
counter expires.
11-22
Case CC1
Case CC2
Case CC3
Case CC4
Case CC5
Case CC6
Case CC7
Case 1
Case 2
Actions for 16-Bit Capture Counter (Non-Cascaded)
The equation in Table 11-10 above can be used except for the cases
entitled “Generation of Two Triggers — Start and Stop” where the
Breakpoint Unit is used to generate both the Start and Stop triggers.
Capture Counter reaches zero before
Counter Stop Trigger occurs
— OR —
Capture Counter reaches zero
(for cases where no Stop Trigger is configured)
Counter Stop Trigger occurs before
Capture Counter reaches zero
Table 11-10. Breakpoint Unit Trigger — for 16-bit Capture Counter
Table 11-11. Possible Capture Counter Actions — Non-Cascaded
(First Part of Breakpoint trigger) OR Enabled DEBUGEV OR Enabled Limiting
(First Part of Breakpoint trigger) => (Enabled DEBUGEV OR Enabled Limiting)
Trigger for Action
DSP56800E Core Reference Manual
Breakpoint Unit Trigger
NOTE:
Enter Debug state
Generate EOnCE Interrupt Request
Set Capture Counter status bits — CS, CZ
Signal Watchpoint
Enter Debug state
Generate EOnCE Interrupt Request
Signal Watchpoint
Action Performed
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