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      參數(shù)資料
      型號: TS80C31X2-MCBD
      廠商: TEMIC SEMICONDUCTORS
      元件分類: 微控制器/微處理器
      英文描述: 8-bit CMOS Microcontroller ROMless
      中文描述: 8-BIT, 40 MHz, MICROCONTROLLER, PQCC44
      封裝: PLASTIC, LCC-44
      文件頁數(shù): 9/40頁
      文件大?。?/td> 484K
      代理商: TS80C31X2-MCBD
      Rev. A - Mar. 19, 1999
      9
      Preliminary
      TS80C31X2
      6.2 Dual Data Pointer Register Ddptr
      The additional data pointer can be used to speed up code execution and reduce code size in a number of
      ways.
      The dual DPTR structure is a way by which the chip will specify the address of an external data memory
      location. There are two 16-bit DPTR registers that address the external memory, and a single bit called
      DPS=AUXR1/bit0(SeeTable5.)thatallowstheprogramcodetoswitchbetweenthem(RefertoFigure 3).
      Figure 3. Use of Dual Pointer
      External Data Memory
      AUXR1(A2H)
      DPS
      DPH(83H) DPL(82H)
      0
      7
      DPTR0
      DPTR1
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      參數(shù)描述
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