[L9369] Can SPI_set_PWM and SPI_PWM_A be set together with only one read-write operation?

[haihun]

Per example code of L9369, to set SPI_set_PWM, one read-write operation for 6Ah is used and 

to set SPI_PWM_A, another read-write operation for 6Ah is used.

My question: Can two separate read-write operations be merged into only one？ Thanks!