ADSP-BF535 is a high-performance Blackfin embedded processor launched by Analog Devices. The core frequency is 350MHz, and it has two 16-bit MACs, two 40-bit ALUs, one 40-bit shifter, four 8-bit video ALUs, and two 40-bit accumulators.
This handbook describes the ADSP-BF535 Blackfin processor, a 350 MHz dual‑MAC, 40‑bit ALU core with dynamic power management and a 260‑ball PBGA package. It details the on‑chip memory hierarchy, including 16 KB L1 instruction cache, 32 KB L1 data cache, 4 KB scratch‑pad RAM and 256 KB L2 SRAM, as well as external memory interfaces.
The document also covers the rich peripheral set (PCI 2.2, USB 1.1, UARTs with IrDA, SPI ports, SPORTs, timers with PWM, programmable flags, watchdog timer, real‑time clock, and PLL multiplier) and provides timing specifications, boot modes, event handling, and PCI bus integration for system designers.
| Core frequency | 350 MHz |
|---|---|
| Core voltage range | 1.0 V‑1.6 V |
| Package type | 260‑Ball PBGA |
| On‑chip L1 instruction memory | 16 KB SRAM/Cache |
| On‑chip L1 data memory | 32 KB SRAM/Cache |
| On‑chip scratch‑pad RAM | 4 KB |
| On‑chip L2 SRAM | 256 KB |
| PCI bus interface | 32‑bit, 33 MHz, 3.3 V, PCI 2.2 compliant |
| USB interface | USB 1.1 device |
| UART ports | Two UARTs (one with IrDA) |
| SPI ports | Two SPI compatible ports |
| SPORT ports | Two full‑duplex synchronous serial ports |
| Timers | Four timers, three with PWM support |
| Programmable flag I/O pins | Sixteen |
| Watchdog timer | Included |
| Real‑time clock | Included |
| PLL multiplier | 1× to 31× |
The ADSP-BF535 processor runs at 350 MHz.
It is supplied in a 260‑ball PBGA package.
The processor provides 256 KB of on‑chip L2 SRAM.