The ADSP-BF5xx is a family of 16-bit fixed-point dual-MAC processors from Analog Devices, targeting power-sensitive applications, such as cell phones; applications that require the functionality of both a DSP and a general-purpose processor, such as automotive applications; and computa- tionally intensive applications, such as consumer video equipment.
The report provides an overview of the ADSP-BF5xx Blackfin DSP family, describing its 16‑bit fixed‑point dual‑MAC architecture, mixed‑width instruction set, and the ability to dynamically switch voltage and clock speed for power‑sensitive applications such as mobile phones and automotive systems.
It also presents benchmark results (execution time, energy efficiency, cost‑performance, and memory use) comparing the ADSP‑BF5xx to competing DSPs, and discusses peripheral options, memory hierarchy, and pipeline characteristics.
| Processor architecture | 16‑bit fixed‑point dual‑MAC |
|---|---|
| Maximum clock speed | 750 MHz |
| Operating voltage range | 0.8 V – 1.45 V |
| L2 memory (BF535) | 256 KB unified RAM |
| On‑chip data bandwidth | 3 billion 16‑bit words/s at 750 MHz |
The second‑generation ADSP‑BF5xx processors can run up to 750 MHz.
The ADSP‑BF535 includes 256 KB of unified program and data RAM as L2 memory.
At 750 MHz the processor can sustain a data bandwidth of about 3 billion 16‑bit words per second.
The ADSP‑BF5xx contains two address generation units.