All the data pointed to by this entry forms a single RU. The buffer group consists solely of the buffer pointed to by this entry. If this entry is encountered while in split or accumulate state, the previous buffer group is ended and the RUs from the data in that group are completed and sent. Then the RU associated with this entry is sent and reset state is entered. If a (1,1) entry is encountered in reset state, the single associated RU is sent, and reset state is maintained.