PAGEPROT0 register
| SEGSIZE0 | First segment, 7-bit page protection size (number of pages to protect in segment, first page included) | 
| SEGOFFSET0 | First segment, 7-bit page protection offset (first page number in protected segment) | 
| SEGSIZE1 | Second segment, 7-bit page protection size (number of pages to protect in segment, first page included) | 
| SEGOFFSET1 | Second segment, 7-bit page protection offset (first page number in protected segment) |