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TS80C32X2-VCKB Datasheet(PDF) 10 Page - TEMIC Semiconductors

Part # TS80C32X2-VCKB
Description  8-bit CMOS Microcontroller 0-60 MHz
PDF  54 Pages
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Manufacturer  TEMIC [TEMIC Semiconductors]
Direct Link  http://www.temic.de
Logo TEMIC - TEMIC Semiconductors

TS80C32X2-VCKB Datasheet(HTML) 10 Page - TEMIC Semiconductors

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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



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