Epson TM U200D Technical Reference - Page 56
Memory Map, The following parts are mapped on the printer memory map, EPROM Program
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TM-U200D/U200PD Technical Manual Memory Map The following parts are mapped on the printer memory map: t CPU t EPROM (Program) External program memory 0000H Program, character generator area FFFFH 0000H External data memory (For multi-lingual) Character generator area (1) FFFFH 0000H 64KB (For multi-lingual) Character generator area (2) FFFFH 0000H 64KB (For multi-lingual) Character generator area (3) FFFFH 64KB 0000H Intemal memory Can not to be used. F000H (Interral ROM program area) F7A0H Can not to be used. FFA0H Internal RAM (2KB) FFFFH Internal I/O (96bytes) 0000H FFFFH (For multi-lingual) Character generator area (4) 64KB CPU (Internal memory) EA RD A8 |A15 D0 |D7 ROM (External program memory) (512K) OE A8 |A15 D0 |D7 ALE (CE)P71 (A16)P75 (A17)P76 (A18)P77 WR 373 D0 |D7 G OC C0 |O7 A0A7 A0 |A7 CE (External data memory) (4M) A8 |A15 D0 |D7 OE A0 |A7 CE A16 |A18 WE Figure 2-17 Memory map Rev. B Mechanism Configuration and Operating Principles