參數(shù)資料
型號(hào): C505-LM
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): 18/85頁
文件大?。?/td> 335K
代理商: C505-LM
Semiconductor Group
18
1997-12-01
C505 / C505C
C505A / C505CA
Multiple Datapointers
As a functional enhancement to the standard 8051 architecture, the C505 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 8
illustrates the datapointer addressing mechanism.
Figure 8
External Data Memory Addressing using Multiple Datapointers
DPH(83H
DPL(82H
DPTR0
DPTR7
.0
.1
.2
-
-
-
-
-
DPSEL(92H
DPSEL
Selected
Data-
pointer
.2
.1
.0
DPTR 0
0
0
0
0
0
1
DPTR 1
0
1
0
DPTR 2
0
1
1
DPTR 3
1
0
0
DPTR 4
1
0
1
DPTR 5
1
1
0
DPTR 6
1
1
1
DPTR 7
MCD00779
External Data Memory
相關(guān)PDF資料
PDF描述
C505A-4EM 8-Bit CMOS Microcontroller
C505C-LM 8-Bit CMOS Microcontroller
C505CA-2R 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
C505CA-4E 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
C505CA-4R 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
C505MB290-S0600 制造商:CREE 制造商全稱:Cree, Inc 功能描述:MegaBright㈢ Generation II LEDs
C505RT230-0101 制造商:MARKTECH 制造商全稱:Marktech Corporate 功能描述:RazerThin LEDs
C505RT230-0102 制造商:MARKTECH 制造商全稱:Marktech Corporate 功能描述:RazerThin LEDs
C505RT230-0103 制造商:MARKTECH 制造商全稱:Marktech Corporate 功能描述:RazerThin LEDs
C505RT230-0104 制造商:MARKTECH 制造商全稱:Marktech Corporate 功能描述:RazerThin LEDs