Different size definition in Matlab and Simulink

I am trying to work with TCP/IP communication in Simulink using "Simulink Coder" and "Simulink Desktop Real-Time" and faced a confusing problem. The size of an expression in Matlab is [1, 1].

>> bytes = uint8([0, 1]);
>> byte = typecast(bytes, 'uint16');
>> size(typecast(bytes, 'uint16'))

ans =

     1     1

>> 

However, when the same exact expression is run in Simulink through the "Matlab Function" block, the result size is [8, 1], but it is needed to be [1, 1].

How could it be solved or explained?

Answer 1

[VBBV]

It seems you are accessing 2 elements of array data with each representing 4 byte register address. Each element of which has 4 digits. For example, a 32 Bit x86 chip has register length of 4 byte can be stored and accessed as you did

[Leon]

Do you have any ideas how to solve it?