The page is a little confusing (to me).
"...integrity check is performed on the plaintext MPDU, and the....(ICV)" is then appended to the MPDU.
That should be MSDU?
This is the same as WEP does?
Difference is that in TKIP the MSDU first has a MIC and then the ICV which are all encrypted?
"A frame check sequence ...is calculated over all the fields of the header and entire frame body...resulting 32-bit CRC is then placed in the FCS field."
Just as WEP does?
TKIP performs the integrity check over the MSDU AND the SA, DA, and the rest of the MIC key. So MPDU is correct.