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PIC18F1220E/SOSQTP Datasheet(PDF) 218 Page - Microchip Technology |
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PIC18F1220E/SOSQTP Datasheet(HTML) 218 Page - Microchip Technology |
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218 / 308 page  PIC18F1220/1320 DS39605F-page 216 © 2007 Microchip Technology Inc. MOVFF Move f to f Syntax: [ label ] MOVFF fs,fd Operands: 0 ≤ fs ≤ 4095 0 ≤ fd ≤ 4095 Operation: (fs) → fd Status Affected: None Encoding: 1st word (source) 2nd word (destin.) 1100 1111 ffff ffff ffff ffff fff fs fff fd Description: The contents of source register ‘fs’ are moved to destination register ‘fd’. Location of source ‘fs’ can be anywhere in the 4096-byte data space (000h to FFFh) and location of destination ‘fd’ can also be anywhere from 000h to FFFh. Either source or destination can be W (a useful special situation). MOVFF is particularly useful for transferring a data memory location to a peripheral register (such as the transmit buffer or an I/O port). The MOVFF instruction cannot use the PCL, TOSU, TOSH or TOSL as the destination register. The MOVFF instruction should not be used to modify interrupt settings while any interrupt is enabled (see page 73). Words: 2 Cycles: 2 (3) Q Cycle Activity: Q1 Q2 Q3 Q4 Decode Read register ‘f’ (src) Process Data No operation Decode No operation No dummy read No operation Write register ‘f’ (dest) Example: MOVFF REG1, REG2 Before Instruction REG1 = 0x33 REG2 = 0x11 After Instruction REG1 = 0x33, REG2 = 0x33 MOVLB Move literal to low nibble in BSR Syntax: [ label ] MOVLB k Operands: 0 ≤ k ≤ 255 Operation: k → BSR Status Affected: None Encoding: 0000 0001 kkkk kkkk Description: The 8-bit literal ‘k’ is loaded into the Bank Select Register (BSR). Words: 1 Cycles: 1 Q Cycle Activity: Q1 Q2 Q3 Q4 Decode Read literal ‘k’ Process Data Write literal ‘k’ to BSR Example: MOVLB 5 Before Instruction BSR register = 0x02 After Instruction BSR register = 0x05 |
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