mcf5272 Freescale Semiconductor, Inc, mcf5272 Datasheet - Page 135
mcf5272
Manufacturer Part Number
mcf5272
Description
Mcf5272 Coldfire Integrated Microprocessor User
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MCF5272.pdf
(550 pages)
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MOTOROLA
when TDR is configured appropriately. PBR bits are masked by setting corresponding
PBMR bits. Results are compared with the processor’s program counter register, as defined
in TDR. Figure 5-9 shows the PC breakpoint register.
Table 5-12 describes PBR fields.
Figure 5-9 shows PBMR.
Table 5-13 describes PBMR fields.
5.4.7 Trigger Definition Register (TDR)
The TDR, shown in Table 5-11, configures the operation of the hardware breakpoint logic
that corresponds with the ABHR/ABLR/AATR, PBR/PBMR, and DBR/DBMR registers
within the debug module. The TDR controls the actions taken under the defined conditions.
Breakpoint logic may be configured as a one- or two-level trigger. TDR[31–16] define the
second-level trigger and bits 15–0 define the first-level trigger.
DRc[4–0]
31–0
31–0 Address PC breakpoint address. The 32-bit address to be compared with the PC as a breakpoint trigger.
Bits
Bits
DRc[4–0]
Reset
Field
R/W Write. PC breakpoint register is accessible in supervisor mode using the WDEBUG instruction and through
Reset
Field
R/W
Name
Mask
Name
the BDM port using the
Set Descriptions.”
31
Figure 5-10. Program Counter Breakpoint Mask Register (PBMR)
31
Write. PBMR is accessible in supervisor mode as debug control register 0x09 using the WDEBUG
PC breakpoint mask. A zero in a bit position causes the corresponding PBR bit to be compared to
the appropriate PC bit. Set PBMR bits cause PBR bits to be ignored.
Figure 5-9. Program Counter Breakpoint Register (PBR)
Table 5-13. PBMR Field Descriptions
instruction and via the BDM port using the wdmreg command.
RDMREG
Table 5-12. PBR Field Descriptions
and
Chapter 5. Debug Support
WDMREG
Program Counter
commands using values shown in Section 5.5.3.3, “Command
Description
Description
Mask
0x08
0x09
—
—
Programming Model
5-13
0
0
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