ocr: Register 18 map This reside. fetches ROM/RAM base in register bank Bits the determines 3 bit, bit contains through and map where the 5 the mode, 2 in three bit the BMB2 correspond MSB bit will memory of to bit map voice BMBB become map the 1 to mode A15, bit BMB2. frequency BMB1 map address - dot During base. Al4, base, data TED and The the can dot BMBB bit A13. The ROM/RAM bank bit, bit 2, will force TED dot and character fetches execution a fram '8' either will ROM force or RAM. RAM. A '1' in this bit will force ROM Register 19 out of TED fran doubling frequency and bit RCM This status chara ...
