Wrigley 3G

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It is a custom digital baseband architecture (DBB). It consist from:

  1. DSP Processor - TMS320C55x+ - based
  2. MCU (general purpose processor) - ARM9 - based

Both communicated with each other over the shared memory

File:Gsm-modem.jpg

Source DIA file: [1]

As and AP (OMAP3430) Wrigley3G use one memory chip, but another partition.