The format of the reload channel has changed such that COEF_FILTER_SEL is now pre-pended to the reload packet on the s_axis_reload_tdata bus.
COEF_DIN is mapped to s_axis_reload_tdata bus
COEF_WE is mapped to s_axis_reload_tvalid
COEF_LD is mapped to s_axis_reload_tlast but is now asserted at the end of a reload packet