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參數資料

型號：	TS80C31X2-ECAD
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-ECAD

Rev. A - Mar. 19, 1999

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)

DPTR0

DPTR1

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TS80C31X2-MCED	8-bit CMOS Microcontroller ROMless
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相關代理商/技術參數	參數描述
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
TS80C31X2-ECCB	制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit CMOS Microcontroller ROMless

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