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30F4013 Datasheet(PDF) 29 Page - Microchip Technology |
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30F4013 Datasheet(HTML) 29 Page - Microchip Technology |
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29 / 228 page ![]() 2010 Microchip Technology Inc. DS70138G-page 29 dsPIC30F3014/4013 FIGURE 3-6: DATA SPACE WINDOW INTO PROGRAM SPACE OPERATION 23 15 0 PSVPAG(1) 15 15 EA<15> = 0 EA<15> = 1 16 Data Space EA Data Space Program Space 8 15 23 0x0000 0x8000 0xFFFF 0x00 0x000100 0x007FFF Data Read Upper Half of Data Space is Mapped into Program Space 0x000200 Address Concatenation BSET CORCON,#2 ; PSV bit set MOV #0x00, W0 ; Set PSVPAG register MOV W0, PSVPAG MOV 0x8200, W0 ; Access program memory location ; using a data space access Note: PSVPAG is an 8-bit register, containing bits<22:15> of the program space address (i.e., it defines the page in program space to which the upper half of data space is being mapped). The memory map shown here is for a dsPIC30F4013 device. |
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