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參數資料
型號: TS80C31X2-ECAB
廠商: Atmel Corp.
英文描述: 8-bit CMOS Microcontroller ROMless
中文描述: 8位CMOS微控制器無ROM
文件頁數: 9/40頁
文件大小: 484K
代理商: TS80C31X2-ECAB
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
相關PDF資料
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TS80C31X2-ECAD 8-bit CMOS Microcontroller ROMless
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相關代理商/技術參數
參數描述
TS80C31X2-ECAD 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless
TS80C31X2-ECAR 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless
TS80C31X2-ECBB 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless
TS80C31X2-ECBD 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless
TS80C31X2-ECBR 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless
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