All members of the High–Speed Microcontroller Familyare designed to directly address up to 64KB of programand data memory. Occasionally, however, an applicationwill require more memory than is either availableon–chip or through the use of the 64KB memory map.The High–Speed Microcontroller Family includes manyfeatures which make it easy to address program and/ordata memory greater than 64KB. Bit–addressable I/Oports allow single instruction modification of controllines, which can be used to bank switch or pagebetween multiple memory devices. The ROMSIZE featureallows easy memory resizing for devices with on–chip memory.