Your alternative a bit shorter: The supplied definition defines 24 words per subframe, 16-bit each. But definition defines is not good, saying the same thing twice. Maybe better: The supplied definition of 24 words per subframe, 16-bit each, corresponds to something ... or some other verb - you can avoid the final "and".

Your alternative a bit shorter:

The supplied definition defines 24 words per subframe, 16-bit each.

But "definition defines" is not good, saying the same thing twice. Maybe better:

The supplied definition of 24 words per subframe, 16-bit each, corresponds [to something]

Or some other verb — you can avoid the final "and".