mcf5272 Freescale Semiconductor, Inc, mcf5272 Datasheet - Page 128

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

Programming Model
These registers are accessed through the BDM port by new BDM commands,
RDMREG
contain a 5-bit field, DRc, that specifies the register, as shown in Table 5-3.
5-6
Note: Each debug register is accessed as a 32-bit register; shaded fields above are not used (don’t care).
31
31
31
31
31
31
0x0A–0x0B Reserved
0x01–0x05 Reserved
DRc[4–0]
0x0C
0x0D
0x0E
0x00
0x06
0x07
0x08
0x09
0x0F
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
RDMREG
, described in Section 5.5.3.3, “Command Set Descriptions.” These commands
and
Configuration/status register
Address attribute trigger register
Trigger definition register
Program counter breakpoint register
Program counter breakpoint mask register
Address breakpoint high register
Address breakpoint low register
Data breakpoint register
Data breakpoint mask register
WDMREG
Figure 5-4. Debug Programming Model
15
15
15
15
15
15
commands
Table 5-3. BDM/Breakpoint Registers
Register Name
.
7
MCF5272 User’s Manual
0
0
0
0
0
0
AATR
ABLR
ABHR
CSR
DBR
DBMR
PBR
PBMR
TDR
Abbreviation
Address attribute trigger register
Address low breakpoint register
Address high breakpoint register
Configuration/status register
Data breakpoint register
Data breakpoint mask register
PC breakpoint register
PC breakpoint mask register
Trigger definition register
PBMR
DBMR
ABHR
AATR
ABLR
CSR
DBR
TDR
PBR
—
—
0x0000_0000
0x0000_0005
0x0000_0000
Initial State
—
—
—
—
—
—
—
—
WDMREG
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p. 5-12
p. 5-12
p. 5-11
p. 5-11
p. 5-9
p. 5-7
p. 5-8
p. 5-8
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MOTOROLA
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and