NXP Semiconductors DSP56301VF100

Overview

DSP56301VF100 from Freescale Semiconductor is a 24-bit programmable digital signal processor (DSP) with DSP56300 core architecture, delivering 100 MIPS at 100 MHz internal clock, 3.3 V supply, and integrated 6-channel DMA, PLL, OnCE™ emulation, and JTAG TAP. It executes position-independent code with nested DO loops and fast auto-return interrupts in videoconferencing and cellular telephony baseband processing.

For engineers reviewing the DSP56301VF100 datasheet, DSP56301VF100 pinout, DSP56301VF100 application, or DSP56301VF100 equivalent, key selection criteria include on-chip memory configuration options (e.g., 4096×24-bit program RAM + 0×24-bit instruction cache), ESSI/SCI peripheral support, PCI Rev. 2.1–compliant HI32 host interface, and 42 GPIO pin availability under active peripheral mapping.

Technical Context

The DSP56301VF100 implements a fully pipelined 24×24-bit MAC with two 56-bit accumulators and a 56-bit barrel shifter, enabling single-cycle multiply-accumulate operations critical for real-time FIR/IIR filtering. Its address generation unit supports circular and bit-reversed addressing modes optimized for FFT and convolution kernels.

It integrates an on-chip PLL with external crystal (XTAL/EXTAL) input and clock generator to derive internal 100 MHz operation from lower-frequency sources, while the concurrent six-channel DMA controller manages data movement between X/Y/program RAM and external memory without CPU intervention.

Key Specifications

Pinout & Package

Package: 144-pin LQFP (Low-Profile Quad Flat Package), 20 mm × 20 mm, 0.5 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital signal processor applications.

Compared with ADSP-2181KS-133 and TMS320C549PGE, the DSP56301VF100 uniquely combines 100 MIPS 24-bit fixed-point performance with integrated PCI Rev. 2.1 host interface, dual ESSI, and on-chip DRAM controller-enabling compact, glueless system designs for multimedia edge devices without sacrificing real-time determinism.

Availability

DSP56301VF100 is available at Aetrix Electronics and suitable for videoconferencing systems, cellular baseband modules, and industrial audio analyzers requiring stable component supply across extended production lifecycles.

Supply support for DSP56301VF100 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Freescale Semiconductor (now part of NXP Semiconductors) was a leading designer of embedded processors, analog, and mixed-signal ICs for automotive, industrial, and networking markets.

The DSP56301VF100 belongs to the DSP56300 family-designed specifically for cost-effective, low-power, real-time signal processing in wireless infrastructure, multimedia terminals, and telecom line cards.

FAQ

What is the maximum operating frequency and voltage range for the DSP56301VF100?

The DSP56301VF100 operates at a maximum internal clock frequency of 100 MHz and is specified for 3.0–3.6 V supply voltage, with typical operation at 3.3 V. Its fully static CMOS design allows operation down to 0 Hz (DC), supporting ultra-low-power stop-mode applications. The on-chip PLL accepts external crystal or clock inputs between 1 MHz and 20 MHz to generate the internal 100 MHz clock. This specification is confirmed in the DSP56301 Technical Data document (order number DSP56301).

Does the DSP56301VF100 support pin-compatible upgrades within the DSP56300 family?

No, the DSP56301VF100 is not pin-compatible with other DSP56300 variants such as DSP56303 or DSP56309 due to differences in peripheral mapping, pin function allocation, and package pin count. For example, the DSP56301VF100 uses a 144-pin LQFP with dedicated HI32 bus signals, whereas higher-pin-count variants use 208-pin packages with expanded memory interface signals. Migration requires PCB redesign and firmware adaptation. The DSP56301VF100 datasheet confirms its unique pinout in the "Pin Descriptions" section.

How is memory configured on the DSP56301VF100, and can it be reprogrammed during runtime?

Memory configuration on the DSP56301VF100 is controlled via mode pins (CACHE_EN, RAM_EN) at reset and is fixed for the power-on session; it cannot be reprogrammed dynamically during runtime. Four configurations are supported: e.g., 4096×24-bit program RAM + 0×24-bit instruction cache (cache disabled), or 3072×24-bit program RAM + 1024×24-bit instruction cache (cache enabled). These settings determine allocation between program RAM and instruction cache, directly impacting code execution speed and memory footprint. Configuration details are defined in the DSP56301 User's Manual (DSP56301UM).

What debug and emulation capabilities does the DSP56301VF100 provide?

The DSP56301VF100 integrates an On-Chip Emulation (OnCE™) module and JTAG Test Access Port (TAP) supporting real-time instruction trace, breakpoint insertion, and register visibility without halting execution. Its address tracing mode mirrors internal program/data accesses onto external bus pins for hardware-level validation. Unlike basic ICE solutions, OnCE™ enables non-intrusive profiling of tight DSP loops and DMA transfers-critical for optimizing audio codec latency. Full functionality is documented in the DSP56300 Family Manual (DSP56300FM).

Can the DSP56301VF100 interface directly with SDRAM or DDR memory?

The DSP56301VF100 includes an on-chip DRAM controller supporting standard asynchronous DRAM (e.g., 1M×16, 4M×16) but does not support SDRAM or DDR memory protocols. It provides row/column address multiplexing, RAS/CAS control, and refresh timing generation without external logic. For SDRAM/DDR interfacing, external memory controllers or bridge ICs are required. This limitation is explicitly stated in the "Off-chip memory expansion" section of the DSP56301 Product Brief (Rev. 2, 11/2005) and confirmed in the DSP56301 Technical Data specification.