I am reading an SPI port via bit banging, the device I am reading allows partial register reads. I have no problem reading n Bits of information into a byte, the problem I have is how they are aligned in the byte(s).

For instance:
If I read in 10 bits of data (for arguments sake lets they are all 1's) and I read in MSBit first then I would get 2 bytes like this:

11111111 00000011

As I bit shift from right to left, is this the normal way to represent the 10Bits of data? or should it be:

11111111 11000000

this also raises the question as to how I present the data for clocking out, (I have presented it left aligned as in the second example)

Any ideas appreciated
Regards

Marshall Brown