This document describes the features and characteristics of Analog Devices' Blackfin series embedded processors ADSP-BF531/ADSP-BF532. The processors are high-performance, versatile, and low power, making them suitable for various application domains.
The handbook describes the ADSP-BF531 and ADSP-BF532 processors, members of the Blackfin family, highlighting their dual‑MAC, multi‑ALU architecture, low‑power design and portable low‑power features. It explains system integration benefits, including a rich set of peripherals such as UART, SPI, two dual‑channel serial ports, timers with PWM, a real‑time clock, watchdog timer and parallel peripheral interface.
Memory architecture is covered in detail, showing up to 84 KB of on‑chip memory (instruction SRAM, data SRAM and scratchpad), external memory options (SDRAM, SRAM, FLASH) and the memory management unit. The document also outlines booting modes, event handling, exception handling and provides extensive timing and electrical specifications.
| Maximum core frequency | 400 MHz |
|---|---|
| Core voltage range | 0.8 V to 1.2 V |
| I/O voltage options | 1.8 V, 2.5 V, 3.3 V |
| On‑chip memory total | 84 KB |
| Instruction SRAM | 16 KB |
| Data SRAM | 32 KB |
| Scratchpad SRAM | 4 KB |
| Serial ports (SPORTs) | Two dual‑channel full‑duplex |
| Timers with PWM | Three timers |
The processors can run at up to 400 MHz.
The core voltage can be set between 0.8 V and 1.2 V with on‑chip regulation.