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PCA9546A: Dual Master Device Application

Part Number: PCA9546A

Our application uses two FPGAs to simultaneously control this chip, with one main device and one backup device. If one device has an issue, the other can be backed up. However, in this application, there is a problem with the SCL of one channel, and turning one of them into a slave device cannot be restored; I would like to know if it is possible to support dual master device applications? If possible, could you help analyze the cause of the current problem?