Numb.1 MCU set for EXTM=1，EARB=0；
Numb.2 MCU set for EXTM=1，EARB=1；
Numb.1 MCU can read Numb.2 MCU sram information，
but Numb.2 MCU can‘t ’read Numb.1 MCU sram information，and BR，BG，BB signal doesn‘t pulldown。
Could you describe the issue more in detail? Multi-master mode of operation is not too much used because of erratum e1151, thus we don't have too much experience with this mode.
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