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TAS5805MEVM: PPC3 accesses some unknown registers wihch DSP Memory Map has

Part Number: TAS5805MEVM
Other Parts Discussed in Thread: TAS5805M

Hi Engineer,

I tried to check the configuration with PPC3 between TAS5805M and PC.

I found that PPC3 accessed some unknown registers, for example, "Book:0x8C Page:0x2C SubAddress:0x74".

Like that;

w 58 7f 8c
w 58 00 2c
w 58 74 00 80 00 00
w 58 00 00

According to the document "TAS5805M Process Flows", I couldn't find "SubAddress 0x74" on Book 0x8C and Page 0x2C.

Why does PPC3 access that SubAddress?

Anyway, I'm programming the source code for TAS5805M. My original PCB has a MCU which connects to TAS5805M through I2C.

Thanks at advance

Edgard