- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373724 > TS80C51RA2-MCBR (TEMIC SEMICONDUCTORS) High Performance 8-bit Microcontrollers PDF資料下載
參數(shù)資料
| 型號： | TS80C51RA2-MCBR |
| 廠商： | TEMIC SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | High Performance 8-bit Microcontrollers |
| 中文描述： | 8-BIT, 40 MHz, MICROCONTROLLER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數(shù)： | 14/74頁 |
| 文件大?。?/td> | 903K |
| 代理商： | TS80C51RA2-MCBR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁當前第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁
14
Rev. C - 06 March, 2001
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
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(SeeTable4.)thatallowstheprogramcodetoswitchbetweenthem(RefertoFigure 3).
Figure 3. Use of Dual Pointer
Table 4. AUXR1: Auxiliary Register 1
Application
Software can take advantage of the additional data pointers to both increase speed and reduce code size, for
example, block operations (copy, compare, search ...) are well served by using one data pointer as a ’source’
pointer and the other one as a "destination" pointer.
AUXR1
Address 0A2H
-
-
-
-
GF3
-
-
DPS
Reset value
X
X
X
X
0
X
X
0
Symbol
Function
Not implemented, reserved for future use.
a
-
a.
User software should not write 1s to reserved bits. These bits may be used in future 8051 family
products to invoke new feature. In that case, the reset value of the new bit will be 0, and its active
value will be 1. The value read from a reserved bit is indeterminate.
GF3 will not be available on first version of the RC devices.
b.
DPS
Data Pointer Selection.
DPS
Operating Mode
0
DPTR0 Selected
1
DPTR1 Selected
GF3
This bit is a general purpose user flag
b
.
External Data Memory
AUXR1(A2H)
DPS
DPH(83H) DPL(82H)
0
7
DPTR0
DPTR1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TS80C51RA2-MCEB | High Performance 8-bit Microcontrollers |
| TS80C51RA2-MCED | High Performance 8-bit Microcontrollers |
| TS80C51RA2-MIJB | High Performance 8-bit Microcontrollers |
| TS80C51RA2-MIJD | High Performance 8-bit Microcontrollers |
| TS80C51RA2-MIJR | High Performance 8-bit Microcontrollers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TS80C51RA2-MCE | 功能描述:IC MCU 8BIT 256BYTE 40MHZ 44VQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:80C 標準包裝:1,500 系列:AVR® ATtiny 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C，LIN，SPI，UART/USART，USI 外圍設備:欠壓檢測/復位，POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):16 程序存儲器容量:8KB（4K x 16） 程序存儲器類型:閃存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 11x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:帶卷 (TR) |
| TS80C51RA2-MCEB | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-MCED | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-MCER | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
| TS80C51RA2-MCJB | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontrollers |
發(fā)布緊急采購，3分鐘左右您將得到回復。