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UPD784938 Datasheet(PDF) 67 Page - NEC |
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UPD784938 Datasheet(HTML) 67 Page - NEC |
67 / 733 page ![]() 67 Preliminary User’s Manual U13987EJ1V0UM00 CHAPTER 3 CPU ARCHITECTURE 3.1 Memory Space The µPD784938 can access a 1-Mbyte memory space. The mapping of the internal data area (special function registers and internal RAM) depends on the LOCATION instruction. A LOCATION instruction must be executed after reset release, and can only be used once. The program after reset release must be as follows: RSTVCT CSEG AT 0 DW RSTSTRT to INITSEG CSEG BASE RSTSTRT: LOCATION 0H; or LOCATION 0FH MOVG SP, #STKBGN |
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