DSM2190F4 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

DSM2190F4

DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-2191 DSPs (3.3V Supply)

STMicroelectronics 

DSM2190F4

TYPICAL MEMORY MAP

There many different ways to place (or map) the

addresses of DSM memory and I/O depending on

system requirements. The DPLD allows complete

mapping flexibility. Figure 7 shows one possible

system memory map. In this case, the DSP will

bootload (via DMA) the contents of Main Flash

memory upon reset. The Secondary Flash memo-

ry can be used for parameter storage or additional

code storage. BMS and MSx are configured in the

DSP to be combined into the BMS signal, allowing

the DSP to access both Flash memories at runt-

ime (after DMA boot). The DSP may execute code

directly from the DSM and well as erase and write

new code or data to DSM Flash.

The nomenclature fs0..fs7 are designators for the

individual sectors of Main Flash memory, 32K

bytes each. csboot0..csboot3 are designators for

the individual Secondary Flash memory seg-

ments, 8K bytes each. csiop designates the DSM

control register block.

The designer may easily specify memory mapping

in a point-and-click software environment using

PSDsoft ExpressTM.

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