In CHI, is "Device" memory type transaction, a way, to implement narrow Read transfer's ?

Hi

For "Normal" memory type txn's, addr wraps around and provides remaining bye access's.

But from Example 2.5 pg. 2-146, which talks about Device mem type transaction (Read), looks like only 14B data are valid even though size field is 64B.

Is this a way to implement narrow Read transfers (ie where valid data bytes != 2^size).

Thanks

Kaustubh