SPRUHZ7K August 2015 – April 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
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.