MC56F81663 datasheet(4/73 Pages) NXP

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1.2 56800EX 32-bit Digital Signal Controller (DSC) core

• Efficient 32-bit 56800EX Digital Signal Processor (DSP) engine with modified dual

Harvard architecture:

• Three internal address buses

• Four internal data buses: two 32-bit primary buses, one 16-bit secondary data

bus, and one 16-bit instruction bus

• 32-bit data accesses

• Supports concurrent instruction fetches in the same cycle, and dual data accesses

in the same cycle

• 20 addressing modes

• 162 basic instructions

• Instruction set supports both fractional arithmetic and integer arithmetic

• 32-bit internal primary data buses support 8-bit, 16-bit, and 32-bit data movement,

plus addition, subtraction, and logical operations

• Single-cycle 16 × 16-bit -> 32-bit and 32 x 32-bit -> 64-bit multiplier-accumulator

(MAC) with dual parallel moves

• 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, which effectively supports DSP and Fast Fourier

Transform algorithms

• Full shadowing of the register stack for zero-overhead context saves and restores:

nine shadow registers correspond to nine address registers (R0, R1, R2, R3, R4, R5,

N, N3, M01)

• Instruction set supports both DSP and controller functions

• Controller-style addressing modes and instructions enable compact code

• Enhanced bit manipulation instruction set

• Efficient C compiler and local variable support

• Software subroutine and interrupt stack, with the stack's 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

• 50 MHz core frequency in normal mode, 100 MHz core frequency in fast mode.

• Operation ambient temperature:

Overview

MC56F81xxx, Rev. 1.1, 12/2020

NXP Semiconductors

MC56F81663 数据表(PDF) 4 Page - NXP Semiconductors

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