SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
Bit 0 determines where the descriptor should be written. If it is desired that all the descriptors are written in order to a set queue then this bit should be set and the CURRENT_DESCRIPTOR, DESCRIPTOR_TOP and DESCRIPTOR_BOTTOM registers are used to define the location of the descriptor queue that will be written.