mcf5272 Freescale Semiconductor, Inc, mcf5272 Datasheet - Page 152

• Manufacturer Part Number: mcf5272
• Description: Mcf5272 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

Background Debug Mode (BDM)
5.5.3.3.7 Resume Execution (
The pipeline is flushed and refilled before normal instruction execution resumes.
Prefetching begins at the current address in the PC and at the current privilege level. If any
register (such as the PC or SR) is altered by a BDM command while the processor is halted,
the updated value is used when prefetching resumes. If a
CPU is not halted, the command is ignored.
Command Sequence:
Operand Data:
Result Data:
5.5.3.3.8 No Operation (
NOP
Command Formats:
Command Sequence:
Operand Data:
Result Data:
5-30
15
15
performs no operation and may be used as a null command where required.
0x0
0x0
12
12
None
The command-complete response (0xFFFF) is returned during the
next shift operation.
None
The command-complete response, 0xFFFF (with S cleared), is
returned during the next shift operation.
11
11
Figure 5-32.
Figure 5-30.
Figure 5-31.
Figure 5-29.
NOP
0xC
0x0
NOP
)
???
???
GO
MCF5272 User’s Manual
GO
NOP
GO
NOP
)
GO
8
8
Command Sequence
Command Sequence
Command Format
Command Format
"CMD COMPLETE"
"CMD COMPLETE
7
7
NEXT CMD
NEXT CMD
0x0
0x0
GO
command is issued and the
4
4
3
3
0x0
0x0
MOTOROLA
0
0