DRV8303: Control register can not change PWM_MODE to 3-pwm input

Part Number:DRV8303

Hi, I tried to change DRV8303'PWM_MODE' to 3-pwm input,

I do access 0x00-0x03 registers via SPI well but once I change register 0x02 D3 as 3-pwm input

It responsed a fault bit(F0), any reason could cause case like me? Thanks!