The DSM2150F5V is an 8 or 16-bit system memory device for use with the Analog Devices DSPs. DSM means Digital signal processor System Memory. A DSM device brings In-System Programmable (ISP) Flash memory, parameter storage, programmable logic, and additional I/O to DSP systems. The result is a flexible two-chip solution for DSP designs. On-chip integrated memory decode logic makes it easy to map dual banks of Flash memory to the DSPs in a variety of ways for bootloading or bypassing DSP boot ROM, code execution, data recording, code swapping, and parameter storage.
●FEATURES SUMMARY
●■ Glueless Connection to DSP
●– Easily add memory, logic, and I/O to the External Port of ADSP-218x, 219x, 2106x, 2116x, 2153x, and TS101 families of
●DSPs from Analog Devices, Inc.
●■ Dual Flash Memories
●– Two independent Flash memory arrays for storing DSP code and data
●– Capable of read-while-write concurrent Flash memory operation
●– Device can be configured as 8-bit or 16-bit
●– Built-in programmable address decoding logic allows mapping individual sectors of each Flash array to any address boundary
●– Each Flash sector can be write protected
●■ 512 KByte Main Flash memory
●– Ample storage for boot loading DSP code/data upon reset and subsequent code swaps
●– Large capacity for storing tables and constants or for data recording
●■ 32 KByte Secondary Flash memory
●– Smaller sector size ideal for storing calibration and configuration constants. Eliminate external serial EEPROM.
●– Optionally bypass internal DSP boot ROM during start-up and execute code directly from Secondary Flash. Use for custom
●start-up code and In-Application Programming (IAP).
●■ Up to 40 Multifunction I/O Pins
●– Increase total DSP system I/O capability
●– I/O controlled by DSP software or PLD logic
●■ General purpose PLD
●– Use for peripheral glue logic to keypads, control panel, displays, LCDs, and other devices
●– Over 3,000 gates of PLD with 16 macro cells
●– Eliminate PLDs and external logic devices
●– Create state machines, chip selects, simple shifters and counters, clock dividers, delays
