The primary function of the data controller module is to schedule the data flow
in the DPUCZDX8G IP. The data controller module
is clocked from m_axi_dpu_aclk
. Data transfer between
the DPUCZDX8G and external memory is clocked
from the data controller clock domain, thus, m_axi_dpu_aclk
serves as a clock source for both the data controller
and the AXI_MM master interface. m_axi_dpu_aclk
should
be connected to the AXI_MM master clock.