The ADSP-21535 is a 300MHz high-performance Blackfin DSP core with 2 16-bit MACs, 2 40-bit ALUs, 2 40-bit accumulators, 4 8-bit video ALUs, and 1 40-bit shifter.
The ADSP-21535 is a member of Analog Devices' Blackfin DSP family, featuring a 300 MHz core with two 16‑bit MAC units, two 40‑bit ALUs, four video ALUs and a 40‑bit shifter. It offers a unified 4 GB address space and a rich set of on‑chip memories, including 16 KB instruction SRAM, 32 KB data SRAM, 4 KB temporary RAM and 256 KB L2 SRAM.
The device integrates extensive peripherals such as a 32‑bit, 33 MHz PCI‑compatible bus, USB 1.1 device interface, two UARTs, two SPI ports, two full‑duplex SPORT ports, four timers (three PWM‑capable), 16 programmable flags, a watchdog timer, a real‑time clock, and a PLL with up to 31× multiplication. DMA controllers enable high‑bandwidth transfers between internal memories, external SDRAM, flash, and PCI space. The datasheet also details the event controller architecture, interrupt handling, and package dimensions for the 260‑lead PBGA version. This manual is written in Chinese.
| Core frequency | 300 MHz |
|---|---|
| Package pins | 260‑lead PBGA |
| Unified address space | 4 GB |
| L1 instruction SRAM | 16 KB |
| L1 data SRAM | 32 KB |
| L2 SRAM | 256 KB |
| USB interface | USB 1.1 device compatible |
| UART ports | 2 |
| SPI ports | 2 |
| SPORT ports | 2 |
| Timers | 4 (3 PWM‑capable) |
The ADSP-21535 core runs at 300 MHz.
It is offered in a 260‑lead PBGA package.
Yes, it includes a USB 1.1 compatible device interface.