Thanks TBAr and floresta, its greatly appreciated more than you'll ever realise
Yes i have to admit the "H" did confuse the heck out of me and i was looking for a more complicated meaning than it really is.
The other thing i probably stuffed up on was....
"A range of C4H to 09H would be if it was 16bit..
C4H = 0xC4 = 196
C2H = 0xC2 = 194
C1H = 0xC1 = 193
C0H = 0xC0 = 192
BFH = 0xBF = 191 and so on all the way down to 09H (0x09) which would equal 9
OR at 12bit as i need...
C4H = 0xC4 = 148
C2H = 0xC2 = 146
C1H = 0xC1 = 145
C0H = 0xC0 = 144
B8H = 0xB8 = 143 and so on all the way down to 09H (0x09) which would equal 9"
With the multiplication for different "bit's" i.e. multipy by the number of bits not just by 16 to the power of etc.
The way i understand it now is that HEX is always multipied by 16 to the power of and bit relates to te number of 0's and 1's in the binary string?