Debug Programming Model - Motorola ColdFire MCF5281 User Manual

Programming Model
31
31
31
31
31
31
Note: Each debug register is accessed as a 32-bit register; shaded fields above are not used (don't care).
All debug control registers are writable from the external development system or the CPU via the WDEBUG
instruction. CSR is write-only from the programming model. It can be read or written through the BDM port using the
and
RDMREG WDMREG
31 31
31
31
31
31
31
31
Note: Each debug register is accessed as a 32-bit register; shaded fields above are not used (don't care).
All debug control registers are writable from the external development system or the CPU via the WDEBUG
instruction.
CSR is write-only from the programming model. It can be read or written through the BDM port using the
and commands
WDMREG
These registers are accessed through the BDM port by the commands,
, described in Section 29.5.3.3, "Command Set Descriptions." These commands
RDMREG
contain a 5-bit field, DRc, that specifies the register, as shown in Table 29-3.
29-6
15 7
15
15
15
15
15
.
commands
15 15 7
15
15 7
15
15
15
15
.
Figure 29-4. Debug Programming Model
MCF5282 User's Manual
0
AATR Address attribute trigger register
0
ABLR Address low breakpoint register
ABHR Address high breakpoint register
0
CSR Configuration/status register
0
DBR Data breakpoint register
DBMR Data breakpoint mask register
0
PBR PC breakpoint register
PBMR PC breakpoint mask register
0
TDR Trigger definition register
0 0
AATR Address attribute trigger register
0
ABLR Address low breakpoint register
ABHR Address high breakpoint register
0
BAAR BDM address attribute register
0
CSR Configuration/status register
0
DBR Data breakpoint register
DBMR Data breakpoint mask register
0
PBR PC breakpoint register
PBMR PC breakpoint mask register
0
TDR Trigger definition register
RDMREG
and
WDMREG
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