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TS80C32X2-LCBR 参数 Datasheet PDF下载

TS80C32X2-LCBR图片预览
型号: TS80C32X2-LCBR
PDF下载: 下载PDF文件 查看货源
内容描述: 8位CMOS微控制器0-60兆赫 [8-bit CMOS Microcontroller 0-60 MHz]
分类和应用: 微控制器和处理器外围集成电路异步传输模式ATM时钟
文件页数/大小: 54 页 / 584 K
品牌: TEMIC [ TEMIC SEMICONDUCTORS ]
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TS80C52X2  
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 (See Table 5.) that allows the program code to switch between them (Refer to Figure 3).  
External Data Memory  
7
0
DPS  
DPTR1  
DPTR0  
AUXR1(A2H)  
DPH(83H) DPL(82H)  
Figure 3. Use of Dual Pointer  
10  
Rev. B - Jan. 25, 1999  
Preliminary  
 
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