dsp56800 Freescale Semiconductor, Inc, dsp56800 Datasheet - Page 227

• Manufacturer Part Number: dsp56800
• Description: 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

As emulation capabilities are necessarily tied to the particular implementation of a DSP56800-based
device, the appropriate device’s user’s manual should be consulted for complete details on implementation
and supported functions.
9.3.1
The capabilities of the OnCE port include the following:
Depending on the implementation for a particular DSP56800-based device, additional debugging and
emulation capabilities may be provided. Consult the user’s manual for the device in question for more
information.
9.3.2
The OnCE port module is composed of four different sub-modules, each of which performs a different
task:
These units, and the overall once port architecture, are shown in Figure 9-3 on page 9-6.
Freescale Semiconductor
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Interrupting and breaking into debug mode on a program memory address
Interrupting and breaking into debug mode on a data memory address (read, write, or access)
Interrupting and breaking into debug mode on an on-chip peripheral register access
Entering debug mode using a microprocessor instruction
Examining or modifying the contents of any core or memory-mapped peripheral register
Examining or modifying any desired sections of program or data memory
Full-speed stepping on one or more instructions (up to 256)
Tracing one or more instructions
Saving or restoring the current state of the chip’s pipeline
Displaying the contents of the real-time instruction trace buffer
Returning to user mode from debug mode
Command, status, and control
Breakpoint and trace
Pipeline save and restore
FIFO history buffer
OnCE Port Capabilities
OnCE Port Architecture
JTAG and On-Chip Emulation (OnCE™)
OnCE Port
9-5