參數(shù)資料
型號(hào): TS80C52X2-VCCD
英文描述: 8-bit CMOS Microcontroller 0-60 MHz
中文描述: 8位CMOS微控制器0-60兆赫
文件頁(yè)數(shù): 2/54頁(yè)
文件大?。?/td> 626K
代理商: TS80C52X2-VCCD
10
Rev. B - Jan. 25, 1999
Preliminary
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).
Figure 3. Use of Dual Pointer
External Data Memory
AUXR1(A2H)
DPS
DPH(83H) DPL(82H)
0
7
DPTR0
DPTR1
相關(guān)PDF資料
PDF描述
TS80C52X2-VCCR 8-bit CMOS Microcontroller 0-60 MHz
TS80C52X2-VCKB 8-bit CMOS Microcontroller 0-60 MHz
TS80C52X2-VCKD 8-bit CMOS Microcontroller 0-60 MHz
TS80C52X2-VCKR 8-bit CMOS Microcontroller 0-60 MHz
TS80C52X2-VICB 8-bit CMOS Microcontroller 0-60 MHz
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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