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C8051F300 Datasheet(PDF) 60 Page - List of Unclassifed Manufacturers |
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C8051F300 Datasheet(HTML) 60 Page - List of Unclassifed Manufacturers |
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60 / 174 page  C8051F300/1/2/3/4/5 60 Rev. 2.6 JNZ rel Jump if A does not equal zero 2 2/3 CJNE A, direct, rel Compare direct byte to A and jump if not equal 3 3/4 CJNE A, #data, rel Compare immediate to A and jump if not equal 3 3/4 CJNE Rn, #data, rel Compare immediate to Register and jump if not equal 3 3/4 CJNE @Ri, #data, rel Compare immediate to indirect and jump if not equal 3 4/5 DJNZ Rn, rel Decrement Register and jump if not zero 2 2/3 DJNZ direct, rel Decrement direct byte and jump if not zero 3 3/4 NOP No operation 1 1 Table 8.1. CIP-51 Instruction Set Summary (Continued) Mnemonic Description Bytes Clock Cycles Notes on Registers, Operands and Addressing Modes: Rn - Register R0-R7 of the currently selected register bank. @Ri - Data RAM location addressed indirectly through R0 or R1. rel - 8-bit, signed (two’s complement) offset relative to the first byte of the following instruction. Used by SJMP and all conditional jumps. direct - 8-bit internal data location’s address. This could be a direct-access Data RAM location (0x00- 0x7F) or an SFR (0x80-0xFF). #data - 8-bit constant #data16 - 16-bit constant bit - Direct-accessed bit in Data RAM or SFR addr11 - 11-bit destination address used by ACALL and AJMP. The destination must be within the same 2K-byte page of program memory as the first byte of the following instruction. addr16 - 16-bit destination address used by LCALL and LJMP. The destination may be anywhere within the 8K-byte program memory space. There is one unused opcode (0xA5) that performs the same function as NOP. All mnemonics copyrighted © Intel Corporation 1980. |
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