NXP Semiconductors DSP56321VL200R2

Overview

DSP56321VL200R2 from Freescale Semiconductor is a 24-bit digital signal processor (DSP) featuring a DSP56300 core, 275 MHz internal clock, 1.6 V core / 3.3 V I/O supply, and integrated Enhanced Filter Coprocessor (EFCOP) for parallel FIR/IIR filtering. It delivers 275 MMACS (550 MMACS with EFCOP) and targets high-throughput wireless infrastructure and echo-cancellation systems.

For engineers reviewing the DSP56321VL200R2 datasheet, DSP56321VL200R2 pinout, DSP56321VL200R2 application, or DSP56321VL200R2 equivalent, key selection criteria include internal memory configuration (up to 192 K × 24-bit RAM), EFCOP acceleration capability, MAP-BGA package compatibility, and pin-compatibility with DSP56303/DSP56309.

Technical Context

The DSP56321VL200R2 implements a fully pipelined 24 × 24-bit MAC with two 56-bit accumulators and a 56-bit barrel shifter, supporting single-cycle instruction execution and DSP56000 code compatibility. Its PLL-based clock generator enables stable 275 MHz core operation with skew elimination and low-jitter EXTAL input support.

It integrates six-channel DMA with 1D/2D/3D transfer support, circular buffering, and peripheral-triggered transfers; the EFCOP operates synchronously at core frequency and supports real/complex FIR, DF-I/DF-II IIR, adaptive LMS, and 4-bit decimation - all without impacting channel throughput.

Key Specifications

Pinout & Package

The DSP56321VL200R2 is housed in a 256-ball MAP-BGA package with 18 address lines (A[0–17]), 24 data lines (D[0–23]), dual-clock interface (EXTAL/XTAL), six interrupt/mode pins (MODA–MODD, IRQA–IRQD), and dedicated peripheral ports including HI08 (16-bit multiplexed host interface), ESSI0/ESSI1 (6 total serial channels), SCI, triple timer, and JTAG/OnCE debug interface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DSP56321VL200R2, DSP56309FE150 offers lower performance and no EFCOP but simpler packaging and reduced BOM cost; ADSP-21161NKCAZ-200 provides floating-point accuracy and larger memory at higher power and price - making DSP56321VL200R2 optimal for cost-constrained, high-channel-count fixed-point filtering.

Availability

DSP56321VL200R2 is available at Aetrix Electronics and suitable for wireless infrastructure, VoIP gateways, and home entertainment systems requiring stable component supply, long-lifecycle support, and verified MAP-BGA sourcing.

Supply support for DSP56321VL200R2 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) is a fabless semiconductor company specializing in microcontrollers, analog, and digital signal processors for automotive, industrial, and networking markets.

The DSP56321VL200R2 belongs to the DSP56300 family - designed specifically for high-performance, low-power embedded signal processing in wireless infrastructure and real-time audio/video systems.

FAQ

What is the maximum operating frequency of the DSP56321VL200R2 core?

The DSP56321VL200R2 operates at a maximum internal core frequency of 275 MHz, achieved via an integrated PLL that multiplies the external EXTAL clock input. This frequency enables 275 million multiply-accumulates per second (MMACS) in standard operation, and up to 550 MMACS when the Enhanced Filter Coprocessor (EFCOP) is engaged for parallel filtering tasks. The 275 MHz specification is validated under 1.6 V core supply and specified thermal conditions per the Freescale DSP56321 Technical Data Rev. 11.

Does the DSP56321VL200R2 include on-chip memory, and how is it allocated?

Yes, the DSP56321VL200R2 integrates 192 K × 24-bit on-chip RAM, configurable across Program RAM, X Data RAM, Y Data RAM, and Instruction Cache. Allocation depends on MSW[2:0] register settings: for example, with MSW2=0, MSW1=0, MSW0=0, it configures as 32 K × 24-bit Program RAM, 0-word cache, and 80 K × 24-bit each for X and Y Data RAM. The device also includes a 192 × 24-bit bootstrap ROM and supports external memory expansion to 256 K × 24-bit data and program spaces.

What is the role of the EFCOP in the DSP56321VL200R2, and which filter types does it support?

The Enhanced Filter Coprocessor (EFCOP) in the DSP56321VL200R2 is a dedicated 24 × 24-bit hardware accelerator that operates in parallel with the main DSP core at full 275 MHz. It supports real FIR with real taps, complex FIR with complex taps, complex FIR generating alternating real/imaginary outputs, Direct Form I and II IIR filters, and adaptive FIR with true or delayed LMS coefficient updates. Its integration allows real-time echo cancellation and convolution without consuming core cycles or reducing channel throughput.

Is the DSP56321VL200R2 pin-compatible with other devices in the DSP56300 family?

Yes, the DSP56321VL200R2 is explicitly documented as pin-compatible with the Freescale DSP56303, DSP56L307, DSP56309, and DSP56311. This compatibility extends to the 256-ball MAP-BGA footprint, signal mapping for Port A (address/data/control), HI08, ESSI, SCI, timers, and JTAG/OnCE interfaces - enabling drop-in replacement in existing PCB layouts designed for those variants, provided power delivery and thermal design accommodate the 275 MHz operation.

What power supply requirements must be met for reliable operation of the DSP56321VL200R2?

The DSP56321VL200R2 requires seven distinct power domains: VCCQL (1.6 V ± 0.1 V) for quiet core logic, VCCQH (3.3 V ± 0.3 V) for quiet I/O, plus segregated supplies VCCA (address bus), VCCD (data bus), VCCC (bus control), VCCH (host interface), and VCCS (ESSI/SCI/timer). Each domain must be externally decoupled with appropriate capacitors per Freescale's layout guidelines; failure to isolate VCCQL risks noise-induced timing violations in the core pipeline.