The user-accessible DRP register set is
described in this section. The DRP register map spans from address 0x00 to address 0x7F (7-bit address bus). The
following figure shows the layout of the register map of user-accessible registers. Be aware
that values of different counters overlap register boundaries.
Figure 1. MMCM DRP Register Set
Important: When operating a DRP port, it is recommended that
the existing contents of the register that is going to be changed are first read. Write back
the register contents where only the required bits are modified. Modify only the colored bits
and always maintain the state of the gray bits.