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PIC18F258-E/LSQTP датащи(PDF) 47 Page - Microchip Technology |
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PIC18F258-E/LSQTP датащи(HTML) 47 Page - Microchip Technology |
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47 / 402 page ![]() © 2006 Microchip Technology Inc. DS41159E-page 45 PIC18FXX8 FIGURE 4-5: DATA MEMORY MAP FOR PIC18F248/448 Bank 0 Bank 1 Bank 14 Bank 15 Data Memory Map BSR<3:0> = 0000 = 0001 = 1111 060h 05Fh F60h FFFh 00h 5Fh 60h FFh Access Bank F5Fh F00h EFFh 1FFh 100h 0FFh 000h Access RAM FFh 00h FFh 00h FFh 00h GPR GPR SFR Unused Access Bank High Access Bank Low Bank 3 to 200h Unused Read ‘00h’ = 1110 = 0011 When a = 0, the BSR is ignored and the Access Bank is used. The first 96 bytes are general purpose RAM (from Bank 0). The next 160 bytes are Special Function Registers (from Bank 15). When a = 1, the BSR is used to specify the RAM location that the instruction uses. GPR FFh 00h 300h (SFR) (GPR) Bank 2 = 0010 |
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