資料介紹
The MCS? 251 microcontrollers is Intel’s next generation MCS 51 microcontrollers. The MCS 251 first product, 8xC251SB is binary code and pin compatible with the existing 80C51 microcontrollers and its derivatives. With instruction pipeline and register based architecture, the 8xC251SB CPU executes most of the instructions in 1 state or 2 clocks period compared with 6 states or 12 clocks period in MCS 51 microcontrollers. Larger and more flexible memory
spaces are available with its 24-bit linear memory addressing capability. 8xC251SB has more programming capability. The instruction set has been enriched to provide 16-bit and 32-bit capability. 8xC251SB has more bit addressable space.
It has more addressing modes, register to register operations and improved data manipulation, accessing, and transfer capabilities. More control instructions are also available to optimize program flow.
1.0 INTRODUCTION.........4
2.0 8XC251SB CPU FEATURES...4
3.0 MEMORY ORGANIZATION.4
3.1 CODE AND DATA MEMORY SPACE5
3.2 REGISTER FILE .................7
3.3 SPECIAL FUNCTION REGISTER (SFR) ..............9
3.3.1 Program Counter (PC) .......10
3.3.2 Program Status Word (PSW).................10
3.3.3 Data Pointer (DPX).10
3.3.4 Stack Pointer (SPX) .10
4.0 ADDRESSING MODES.........10
4.1 REGISTER ADDRESSING ..11
4.2 IMMEDIATE ADDRESSING12
4.3 DIRECT ADDRESSING......12
4.4 INDIRECT ADDRESSING...12
4.5 DISPLACEMENT ADDRESSING.....13
4.6 RELATIVE ADDRESSING ..13
4.7 BIT ADDRESSING............13
5.0 INSTRUCTION SET...13
5.1 ARITHMETIC INSTRUCTIONS.......13
5.2 DATA TRANSFER INSTRUCTIONS.14
5.3 LOGICAL INSTRUCTIONS .15
5.4 BIT INSTRUCTIONS .........16
5.5 CONTROL INSTRUCTIONS 16
6.0 CONCLUSION............16
APPENDIX A: INSTRUCTION CYCLE IMPROVEMENT.................17
APPENDIX B: EXAMPLES OF NEW 8XC251SB ARITHMETIC INSTRUCTION........28
APPENDIX C: EXAMPLES OF NEW 8XC251SB DATA TRANSFER INSTRUCTION.32
APPENDIX D: EXAMPLES OF NEW 8XC251SB LOGICAL INSTRUCTION...............35
APPENDIX E: EXAMPLES OF NEW 8XC251SB CONTROL INSTRUCTION..............37
ADDITIONAL REFERENCES...38
spaces are available with its 24-bit linear memory addressing capability. 8xC251SB has more programming capability. The instruction set has been enriched to provide 16-bit and 32-bit capability. 8xC251SB has more bit addressable space.
It has more addressing modes, register to register operations and improved data manipulation, accessing, and transfer capabilities. More control instructions are also available to optimize program flow.
1.0 INTRODUCTION.........4
2.0 8XC251SB CPU FEATURES...4
3.0 MEMORY ORGANIZATION.4
3.1 CODE AND DATA MEMORY SPACE5
3.2 REGISTER FILE .................7
3.3 SPECIAL FUNCTION REGISTER (SFR) ..............9
3.3.1 Program Counter (PC) .......10
3.3.2 Program Status Word (PSW).................10
3.3.3 Data Pointer (DPX).10
3.3.4 Stack Pointer (SPX) .10
4.0 ADDRESSING MODES.........10
4.1 REGISTER ADDRESSING ..11
4.2 IMMEDIATE ADDRESSING12
4.3 DIRECT ADDRESSING......12
4.4 INDIRECT ADDRESSING...12
4.5 DISPLACEMENT ADDRESSING.....13
4.6 RELATIVE ADDRESSING ..13
4.7 BIT ADDRESSING............13
5.0 INSTRUCTION SET...13
5.1 ARITHMETIC INSTRUCTIONS.......13
5.2 DATA TRANSFER INSTRUCTIONS.14
5.3 LOGICAL INSTRUCTIONS .15
5.4 BIT INSTRUCTIONS .........16
5.5 CONTROL INSTRUCTIONS 16
6.0 CONCLUSION............16
APPENDIX A: INSTRUCTION CYCLE IMPROVEMENT.................17
APPENDIX B: EXAMPLES OF NEW 8XC251SB ARITHMETIC INSTRUCTION........28
APPENDIX C: EXAMPLES OF NEW 8XC251SB DATA TRANSFER INSTRUCTION.32
APPENDIX D: EXAMPLES OF NEW 8XC251SB LOGICAL INSTRUCTION...............35
APPENDIX E: EXAMPLES OF NEW 8XC251SB CONTROL INSTRUCTION..............37
ADDITIONAL REFERENCES...38
下載該資料的人也在下載
下載該資料的人還在閱讀
更多 >
- TLC251、TLC251A、TLC251B、TLC251Y可編程低功耗運(yùn)算放大器數(shù)據(jù)表
- 中微愛(ài)芯LCD型微控制器AiP9M251 AiP9M251L
- 系統(tǒng)可編程閃存中的RISC微控制器LGT8XM 0次下載
- Keil C251 V5.59軟件免費(fèi)下載 356次下載
- 基于Modicon M251的邏輯控制器的功能及安裝 12次下載
- 新一代八位微控制器(Intel8XC251SB)原理及應(yīng)用技術(shù)規(guī)范 19次下載
- ModiconM241/M251可編程控制器的介紹 2次下載
- 8位單片微控制器XC866
- Neuron芯片與MCS-251系列單片機(jī)串行通信的實(shí)現(xiàn)
- 介紹MCS 251微控制器-- 8XC251SB的新功能應(yīng)用
- 8xC251Sx (8XC251SA, 8XC251SB,
- 8XC251SA, 8XC251SB,8XC251SP, 8
- 8XC251Tx(8XC251TA, 8XC251TB, 8XC251TP, 8XC251TQ)應(yīng)用技術(shù)資料
- 8XC251Sx與8XC251Tx的差異比較
- MCS-51微控制器轉(zhuǎn)換到MCS-251微控制器(8XC25
- 微控制器與運(yùn)動(dòng)控制器的區(qū)別 377次閱讀
- 可編程邏輯控制器和微控制器的區(qū)別 443次閱讀
- 微控制器的定義和工作原理 1086次閱讀
- 為MAXQ2000微控制器實(shí)現(xiàn)JTAG自舉加載程序主控 984次閱讀
- MAXQ微控制器中斷編程 589次閱讀
- 使用uIP堆棧將MAXQ微控制器聯(lián)網(wǎng) 1052次閱讀
- digilent開(kāi)源微控制器介紹 1482次閱讀
- 米爾科技微控制器開(kāi)發(fā)套件介紹 1760次閱讀
- 米爾科技KEIL C251開(kāi)發(fā)工具比較 3256次閱讀
- 米爾科技Keil C51 官方開(kāi)發(fā)工具介紹 3016次閱讀
- 米爾科技Keil C251 開(kāi)發(fā)工具 介紹 3619次閱讀
- 微控制器的相關(guān)知識(shí)介紹(含義、編程語(yǔ)言) 5139次閱讀
- 可編程邏輯在微控制器中起什么關(guān)鍵作用 1584次閱讀
- 可編程控制器基本知識(shí)_可編程控制器原理及應(yīng)用 5.8w次閱讀
- TIMSP430微控制器軟件編程經(jīng)驗(yàn)和應(yīng)用技巧 4104次閱讀
下載排行
本周
- 1HFSS電磁仿真設(shè)計(jì)應(yīng)用詳解PDF電子教程免費(fèi)下載
- 24.30 MB | 128次下載 | 1 積分
- 2雷達(dá)的基本分類(lèi)方法
- 1.25 MB | 4次下載 | 4 積分
- 3電感技術(shù)講解
- 827.73 KB | 2次下載 | 免費(fèi)
- 4從 MSP430? MCU 到 MSPM0 MCU 的遷移指南
- 1.17MB | 2次下載 | 免費(fèi)
- 5有源低通濾波器設(shè)計(jì)應(yīng)用說(shuō)明
- 1.12MB | 2次下載 | 免費(fèi)
- 6RA-Eco-RA2E1-48PIN-V1.0開(kāi)發(fā)板資料
- 35.59 MB | 2次下載 | 免費(fèi)
- 7面向熱插拔應(yīng)用的 I2C 解決方案
- 685.57KB | 1次下載 | 免費(fèi)
- 8愛(ài)普生有源晶體振蕩器SG3225EEN應(yīng)用于儲(chǔ)能NPC、新能源
- 317.46 KB | 1次下載 | 免費(fèi)
本月
- 12024年工控與通信行業(yè)上游發(fā)展趨勢(shì)和熱點(diǎn)解讀
- 2.61 MB | 763次下載 | 免費(fèi)
- 2HFSS電磁仿真設(shè)計(jì)應(yīng)用詳解PDF電子教程免費(fèi)下載
- 24.30 MB | 128次下載 | 1 積分
- 3繼電保護(hù)原理
- 2.80 MB | 36次下載 | 免費(fèi)
- 4正激、反激、推挽、全橋、半橋區(qū)別和特點(diǎn)
- 0.91 MB | 32次下載 | 1 積分
- 5labview實(shí)現(xiàn)DBC在界面加載配置
- 0.57 MB | 21次下載 | 5 積分
- 6在設(shè)計(jì)中使用MOSFET瞬態(tài)熱阻抗曲線
- 1.57MB | 15次下載 | 免費(fèi)
- 7GBT 4706.1-2024家用和類(lèi)似用途電器的安全第1部分:通用要求
- 7.43 MB | 14次下載 | 免費(fèi)
- 8H橋中的電流感測(cè)
- 545.39KB | 7次下載 | 免費(fèi)
總榜
- 1matlab軟件下載入口
- 未知 | 935113次下載 | 10 積分
- 2開(kāi)源硬件-PMP21529.1-4 開(kāi)關(guān)降壓/升壓雙向直流/直流轉(zhuǎn)換器 PCB layout 設(shè)計(jì)
- 1.48MB | 420061次下載 | 10 積分
- 3Altium DXP2002下載入口
- 未知 | 233084次下載 | 10 積分
- 4電路仿真軟件multisim 10.0免費(fèi)下載
- 340992 | 191360次下載 | 10 積分
- 5十天學(xué)會(huì)AVR單片機(jī)與C語(yǔ)言視頻教程 下載
- 158M | 183329次下載 | 10 積分
- 6labview8.5下載
- 未知 | 81578次下載 | 10 積分
- 7Keil工具M(jìn)DK-Arm免費(fèi)下載
- 0.02 MB | 73804次下載 | 10 積分
- 8LabVIEW 8.6下載
- 未知 | 65985次下載 | 10 積分
評(píng)論
查看更多