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TPS25751: Doubts in I2C communication between external MCU and PD controller

Part Number: TPS25751
Other Parts Discussed in Thread: MSP430FR6989

Tool/software:

Hello while i was reading the TPS25751 technical manual (Document slvucr8a page 10)  i found the following figure that indicates how the I2C communication should be between an I2C controller and the TPS25751.


 

Apparently in figure 1-3 when reading the TPS25751 from a host such as MCU, the TPS25751 expects NACKS (see the 1 below the A bit in the read register protocol) from the MCU  after a byte is sent to the MCU. 
My question is: Is this not typically an ACK instead of a NACK? I am currently working with MSP430FR6989 device and I don't know how the MSP430FR6989 should be configured to generate this NACKs instead of an ACK when it reads a byte. 

We thought at first that this could be done modifying the UCTXNACK in the UCBxCTLW0 in MSP430FR6989, but it says that this bit is only for slave receiver mode (see document slau367p eusciB I2C section, pages 845-846)



My question basically is,can we configure the MCU (MSP430FR6989) to generate NACKs instead of ACKs after each byte read?
Thank you kindly
Juan