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TPS65983B: TPS65983B boot up issue

Part Number: TPS65983B
Other Parts Discussed in Thread: TPD6S300,

Hi Sir,

 My customer uses TPS65983B in Tapex creek platform and modify it as bus power application. I connect +M3.3V and +LDO_3.3V together, modify buspowerz to 1.8V and bypass TPD6S300, 983B send out 5V already and Flash SPI interface start working. But VOUT_3V3 and RESETZ is always high. Would you please helping to check any problems on the circuit? Thanks for your kindly help.

Best regards,

Gary Teng

983b_y2.pdf