Overview
• 32-bit arithmetic and logic multi-bit shifter
• Four 36-bit accumulators, including extension bits
• Parallel instruction set with unique DSP addressing modes
• Hardware DO and REP loops
• Bit reverse address mode, effectively supporting DSP and Fast Fourier Transform
algorithms
• Full shadowing of the register stack for zero-overhead context saves and restores:
nine shadow registers corresponding to the R0, R1, R2, R3, R4, R5, N, N3, and M01
address registers
• Instruction set supporting both DSP and controller functions
• Controller-style addressing modes and instructions for compact code
• Enhanced bit manipulation instruction set
• Efficient C compiler and local variable support
• Software subroutine and interrupt stack with depth limited only by memory
• Priority level setting for interrupt levels
• JTAG/Enhanced On-Chip Emulation (OnCE) for unobtrusive, real-time debugging
that is independent of processor speed
1.3 Operation Parameters
• Up to 80 MHz operation at -40 °C to 105 °C ambient temperature
• Single 3.3 V power supply
• Supply range: VDD - VSS = 2.7 V to 3.6 V, VDDA - VSSA = 2.7 V to 3.6 V
1.4 On-Chip Memory and Memory Protection
• Modified dual Harvard architecture permits as many as three simultaneous accesses
to program and data memory
• Internal flash memory with security and protection to prevent unauthorized access
• Memory resource protection (MRP) unit to protect supervisor programs and
resources from user programs
• Programming code can reside in flash memory during flash programming
• The dual-ported RAM controller supports concurrent instruction fetches and data
accesses, or dual data accesses, by the DSC core.
• Concurrent accesses provide increased performance.
• The data and instruction arrive at the core in the same cycle, reducing latency.
• On-chip memory
• Up to 128 KW program/data flash memory
• Up to 16 KW dual port data/program RAM
MC56F8455x Advance Information Data Sheet, Rev. 2, 06/2012.
6
Freescale Semiconductor, Inc.
Preliminary
General Business Information
FREESCALE [ Freescale ]
