MCF5272VF66 Freescale, MCF5272VF66 Datasheet - Page 154
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MCF5272VF66
Manufacturer Part Number
MCF5272VF66
Description
Manufacturer
Freescale
Datasheet
1.MCF5272VF66.pdf
(544 pages)
Specifications of MCF5272VF66
Family Name
MCF5xxx
Device Core
ColdFire
Device Core Size
32b
Frequency (max)
66MHz
Instruction Set Architecture
RISC
Supply Voltage 1 (typ)
3.3V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
196
Package Type
MA-BGA
Lead Free Status / RoHS Status
Not Compliant
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Debug Support
Breakpoint registers must be carefully configured in a development system if the processor is executing.
The debug module contains no hardware interlocks, so TDR should be disabled while breakpoint registers
are loaded, after which TDR can be written to define the exact trigger. This prevents spurious breakpoint
triggers.
Because there are no hardware interlocks in the debug unit, no BDM operations are allowed while the CPU
is writing the debug’s registers (DSCLK must be inactive).
Note that the debug module requires the use of the internal bus to perform BDM commands. In Revision
A, if the processor is executing a tight loop that is contained within a single aligned longword, the
processor may never grant the internal bus to the debug module, for example:
label1: nop
or
label2: bra.w label2
The processor grants the internal bus if these loops are forced across two longwords.
5.7
This section specifies the ColdFire processor and debug module’s generation of the processor status (PST)
and debug data (DDATA) output on an instruction basis. In general, the PST/DDATA output for an
instruction is defined as follows:
PST = 0x1, {PST = [0x89B], DDATA= operand}
where the {...} definition is optional operand information defined by the setting of the CSR.
The CSR provides capabilities to display operands based on reference type (read, write, or both). A PST
value {0x8, 0x9, or 0xB} identifies the size and presence of valid data to follow on the DDATA output {1,
2, or 4 bytes}. Additionally, for certain change-of-flow branch instructions, CSR[BTB] provides the
capability to display the target instruction address on the DDATA output {2, 3, or 4 bytes} using a PST
value of {0x9, 0xA, or 0xB}.
5.7.1
Table 5-22
register. In this definition, the ‘y’ suffix generally denotes the source and ‘x’ denotes the destination
operand. For a given instruction, the optional operand data is displayed only for those effective addresses
referencing memory.The ‘DD’ nomenclature refers to the DDATA outputs.
5-36
align4
bra.b label1
align4
Processor Status, DDATA Definition
shows the PST/DDATA specification for user-mode instructions. Rn represents any {Dn, An}
User Instruction Set
MCF5272 ColdFire
®
Integrated Microprocessor User’s Manual, Rev. 3
Freescale Semiconductor
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