IP2022 User’s Manual—System Architecture www.ubicom.com 27 2.2 Data Memory Figure 2-2 is a map of the data memory. Figure 2-2  Data Memory Map The  special-purpose  registers  and  the  first  128  data  memory
locations   (between   addresses   0x080   and   0x0FF)   can   be
accessed  with  a  direct  addressing  mode  in  which  the  absolute
address  of  the  operand  is  encoded  within  the  instruction.  The
remaining 3840 bytes of data memory (between addresses 0x100
and 0xFFF) must be accessed using indirect or indirect-with-offset
addressing  modes.  There  is  one  16-bit  register  for  the  indirect
addressing pointer, and two 16-bit registers for indirect-with-offset
address pointers. The offset is a 7-bit value encoded within the 515-028.eps            128
Special-Purpose Registers   3840 Bytes
Data Memory 0x000 7 0 0x080 0xFFF            128
Global Registers 0x100 0x07F 0x0FF