I am reading a datasheet which uses the prefix 0x (e.g. 0x2185AD12) to indicate the hexadecimal notation used. Suddenly, for this one diagram, they use a trailing h (e.g. 2185AD12h).
Is this just some inconsistency I can gloss over, or does the h suffix have a different meaning to the 0x prefix?
They have the same meaning. Suffix h is more or less standard, and prefix 0x comes specifically from C language.