This mode is conceptually identical to TP_MODE = 0 with TP_SHIFT = 0. It is a faster implementation, but the output is undetermined if the cumsum overflows the range of TT_OUT_DATA.
If this occurs, the output sample in question and all following samples until the end of that vector will be undefined. No defensive check or detection of this error condition is implemented, as doing so would degrade performance.
The user must ensure that the cumsum does not overflow TT_OUT_DATA when using this mode.