mcf5272 Freescale Semiconductor, Inc, mcf5272 Datasheet - Page 72

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

Features and Enhancements
The MAC provides functionality in the following three related areas, which are described
in detail in Chapter 3, “Hardware Multiply/Accumulate (MAC) Unit.”
2.1.1.2.3 Hardware Divide Unit
The hardware divide unit performs the following integer division operations:
2.1.2 Debug Module Enhancements
The ColdFire processor core debug interface supports system integration in conjunction
with low-cost development tools. Real-time trace and debug information can be accessed
through a standard interface, which allows the processor and system to be debugged at full
speed without costly in-circuit emulators. On-chip breakpoint resources include the
following:
2-4
• Signed and unsigned integer multiplies
• Multiply-accumulate operations with signed and unsigned fractional operands
• Miscellaneous register operations
• 32-bit operand/16-bit operand producing a 16-bit quotient and a 16-bit remainder
• 32-bit operand/32-bit operand producing a 32-bit quotient
• 32-bit operand/32-bit operand producing a 32-bit remainder
• Configuration/status register (CSR)
• Bus attributes and mask register (AATR)
• Breakpoint registers. These can be used to define triggers combining address, data,
and PC conditions in single- or dual-level definitions. They include the following:
— PC breakpoint register (PBR)
— PC breakpoint mask register (PBMR)
Figure 2-2. ColdFire Multiply-Accumulate Functionality Diagram
Operand Y
MCF5272 User’s Manual
Accumulator
Shift 0,1,-1
+/-
X
Operand X
MOTOROLA