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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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HCS12 数据表(PDF) 119 Page - Freescale Semiconductor, Inc |
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HCS12 数据表(HTML) 119 Page - Freescale Semiconductor, Inc |
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119 / 452 page  S12CPUV2 Reference Manual, Rev. 4.0 Freescale Semiconductor 119 Operation: (M) • (Mask) ⇒ M Description: Clears bits in location M. To clear a bit, set the corresponding bit in the mask byte. Bits in M that correspond to 0s in the mask byte are not changed. Mask bytes can be located at PC + 2, PC + 3, or PC + 4, depending on addressing mode used. BCLR Clear Bits in Memory BCLR CCR Details: S X HIN Z V C –––– ∆∆ 0 – N: Set if MSB of result is set; cleared otherwise Z: Set if result is $00; cleared otherwise V: 0; cleared Source Form Address Mode(1) 1. Indirect forms of indexed addressing cannot be used with this instruction. Object Code Access Detail HCS12 M68HC12 BCLR opr8a, msk8 BCLR opr16a, msk8 BCLR oprx0_xysp, msk8 BCLR oprx9,xysp, msk8 BCLR oprx16,xysp, msk8 DIR EXT IDX IDX1 IDX2 4D dd mm 1D hh ll mm 0D xb mm 0D xb ff mm 0D xb ee ff mm rPwO rPwP rPwO rPwP frPwPO rPOw rPPw rPOw rPwP frPwOP |
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