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BQ30Z554-R1: ChargingStatus() Register - How many bytes is it?

Part Number: BQ30Z554-R1

Hello,

I am looking at the current TRM for the BQ30Z554-R1 device (https://www.ti.com/lit/ug/sluua79/sluua79.pdf) and there is a discrepancy for the ChargingStatus register between two pages on the TRM. 

On page 85 (https://www.ti.com/lit/ug/sluua79/sluua79.pdf#page=85) it shows the register as 2 bytes (Bit 0 through Bit 15). 

But on 136 (https://www.ti.com/lit/ug/sluua79/sluua79.pdf#page=136) it shows the register in the description coll um as 4 bytes (bits 0 through 15 and another row bits 16 to 31), and in the "Name" column as 3 bytes.

How big is this register? My customer needs to know the block size so they can read it correctly. 

Thanks,

John