Memory layout

       0 -   400000: SPI flash
       0 -     1000: IRQ0 - IRQ15
    1030 -    7b030: audio plugin (loaded by program, purpose unknown)
   7d100 -   102060: firmware
  102060 -        ?: bss? (uninitialized data region)
  200000 -   283105: SMEDIA
 1000000 -        ?: internal ROM ? (this is where SMEDIA is installed)
c0000000 -        ?: memory mapped IO