參數(shù)資料
型號: SAF-C509-L
廠商: SIEMENS AG
元件分類: 8位微控制器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8位CMOS微控制器
文件頁數(shù): 27/74頁
文件大?。?/td> 1607K
代理商: SAF-C509-L
C509-L
Semiconductor Group
26
Multiple Datapointers
As a functional enhancement to the standard 8051 architecture, the C509-L contains eight 16-bit
datapointers instead of only one datapointer. The instruction set uses just one of these datapointers
at a time. The selection of the actual datapointer is done in the special function regsiter DPSEL.
Figure 14
illustrates the datapointer addressing mechanism.
Figure 14
External Data Memory Addressing using Multiple Datapointers
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