data tranfer size to RAM

[EECS Instructional Account]

if in the spec it says only block sizes of 2^2 bytes (1 word), 2^3 bytes
(2 words), 2^4 bytes (4 words), and 2^5 bytes (8 words)( are allowed in
terms of size transfer to and from memory, then why do they have
BYTE_SIZE and HALF_WORD_SIZE in the TransferUnit enum?

We would never use BYTE_SIZE and HALF_WORD_SIZE in our code right?

and if we are supposed to, then in what scenario?

[[Instr] Albert Chae]

You're right, you can ignore BYTE_SIZE and HALF_WORD_SIZE. The reason
they are included is that there is a clever mapping between the value
of these enumerated values and something else that might make your
program easier to write...

Albert