參數(shù)資料
型號: SAF-C502-2RP
廠商: SIEMENS A G
元件分類: 微控制器/微處理器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PDIP40
文件頁數(shù): 25/46頁
文件大?。?/td> 567K
代理商: SAF-C502-2RP
Semiconductor Group
24
Eight Datapointers for Faster External Bus Access
The SAB-C502 contains a set of eight 16-bit-Datapointer (DPTR) from which the actual DPTR can
be selected.
This means that the user’s program may keep up to eight 16-bit addresses resident in these
registers, but only one register at the time is selected to be the datapointer. Thus the DPTR in turn
is accessed (or selected) via indirect addressing. This indirect addressing is done through a special
function register (SFR) called DPSEL (data pointer select register, Bits 0 to 2). All instructions of the
SAB-C502 which handle the DPTR therefore affect only one of the eight pointers which is
addressed by DPSEL at that very moment.
A 3-bit field in SFR DPSEL points to the currently used DPTRx:
DPSEL
selected
DPTR
.2
.1
.0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
DPTR 0
DPTR 1
DPTR 2
DPTR 3
DPTR 4
DPTR 5
DPTR 6
DPTR 7
C502
相關(guān)PDF資料
PDF描述
SAF-C502-L20N 8-Bit CMOS Microcontroller
SAF-C502-L20P 8-Bit CMOS Microcontroller
SAF-C502-LN 8-Bit CMOS Microcontroller
SAF-C502-LP 8-Bit CMOS Microcontroller
SAB-C502-L20P 8-Bit CMOS Microcontroller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAF-C502-L20N 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAF-C502-L20P 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAF-C502-LN 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAF-C502-LP 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller
SAFC503 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller