利用程序在ROM中设置40个固定数值在41～80的BCD码数据，程序运行时，把该数据块读到片内RAM的20H～47H区间，然后把该数据块变换为BIN码（二进制制）存于片内的48H ～6FH区间，再把BIN数据变换为ASCII码存于片外RAM 0100H ～ 013FH区间。-The use of the program ROM set 40 fixed values in the 41 ~ 80 BCD code data, the program runs, to read the data blocks on-chip RAM-20H ~ 47H interval, and then transform the data block of code for the BIN (binary system ) stored in the on-chip 48H ~ 6FH interval, then transformed into ASCII codes BIN data stored in the off-chip RAM 0100H ~ 013FH range.