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UPD178004A Datasheet(PDF) 14 Page - NEC |
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UPD178004A Datasheet(HTML) 14 Page - NEC |
14 / 56 page ![]() 14 µPD178004A, 178006A, 178016A, 178018A 4. MEMORY SPACE Figure 4-1 shows the µPD178004A, 178006A, 178016A, and 178018A memory map. Figure 4-1. Memory Map Special Function Registers (SFR) 256 × 8 bits General-Purpose Registers 32 × 8 bits Internal High-Speed RAM 1 024 × 8 bits Use Prohibited Buffer RAM 32 × 8 bits Use Prohibited Internal ROM Note 3 Data Memory Space Program Memory Space FFFFH FF00H FEFFH FEE0H FEDFH FB00H FAFFH FAE0H FADFH FAC0H FABFH nnnnH + 1 nnnnH 0000H Use Prohibited Internal Expanded RAM 2 048 × 8 bits Use Prohibited Note 2 FABFH F800H F7FFH F000H EFFFH nnnnH + 1 Program Area CALLF Entry Area Program Area CALLT Table Area Vectored Table Area nnnnH 1000H 0FFFH 0800H 07FFH 0080H 007FH 0040H 003FH 0000H Note 1 Notes 1. Available only for µPD178016A and 178018A 2. The µPD178018A does not contain this use prohibited area. 3. The internal ROM capacity depends on the version (see the table below). Corresponding Product Internal ROM Last Address Name nnnnH µPD178004A 7FFFH µPD178006A, 178016A BFFFH µPD178018A EFFFH |
Similar Part No. - UPD178004A |
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Similar Description - UPD178004A |
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