I/O 型單片機使用手冊 目錄 間接尋址寄存器 – IAR, IAR0, IAR1 .............................................35間接尋址指針 – MP, MP0, MP1 ......................................................35存儲區指針 – BP .........................................................................36累加器 – ACC...................................................................................37程序計數器低字節寄存器 – PCL....................................................37表格寄存器 – TBLP,TBHP,TBLH....................................................37看門狗定時寄存器 – WDTS............................................................38狀態寄存器 – STATUS.....................................................................38中斷控制寄存器 – INTC,INTC0,INTC1 .........................................39定時/計數寄存器...............................................................................39輸入/輸出端口和控制寄存器...........................................................40UART 寄存器 .USR,UCR1,UCR2,TXR/RXR,BRG.......................40輸入/輸出端口..........................................................................................41上拉電阻............................................................................................41PA 口的喚醒......................................................................................41輸入/輸出端口控制寄存器...............................................................41引腳共享功能....................................................................................42編程注意事項....................................................................................45定時/計數器..............................................................................................46配置定時/計數器輸入時鐘源...........................................................47定時/計數寄存器 – TMR, TMR0,TMR0L/TMR0H,TMR1L/TMR1H,TMR2.....................................................................49定時/計數控制寄存器 – TMRC,TMR0C,TMR1C,TMR2C............50定時器模式........................................................................................53事件計數器模式................................................................................53脈沖寬度測量模式............................................................................54可編程分頻器(PFD)和蜂鳴器的應用..............................................55預分頻器(Prescaler)...........................................................................56輸入/輸出接口...................................................................................56編程注意事項....................................................................................57定時/計數器應用范例.......................................................................57中斷............................................................................................................59中斷寄存器........................................................................................59中斷優先權........................................................................................62外部中斷............................................................................................63定時/計數器中斷...............................................................................64UART 中斷........................................................................................64編程注意事項....................................................................................65復位和初始化............................................................................................66復位....................................................................................................66目錄iii異步串行口——UART............................................................................74UART 特性..........................................................................................74UART 外部引腳..................................................................................74數據發送.............................................................................................75UART 狀態控制寄存器......................................................................75波特率發生器.....................................................................................79UART 設置與控制..............................................................................81UART 發送器......................................................................................83UART 接收器......................................................................................84接收錯誤處理.....................................................................................85接收中斷圖解.....................................................................................86地址檢測模式.....................................................................................86暫停模式下的UART 功能.................................................................87UART 應用范例.................................................................................87振蕩器........................................................................................................89系統時鐘配置....................................................................................89系統晶體/陶瓷振蕩器.......................................................................89系統電阻電容振蕩器........................................................................90內部系統電阻電容振蕩器................................................................90RTC 振蕩器........................................................................................91看門狗定時振蕩器............................................................................91暫停和喚醒................................................................................................92暫停.....................................................................................................92進入暫停.............................................................................................92靜態電流.............................................................................................92喚醒....................................................................................................92看門狗定時器............................................................................................94掩膜選項....................................................................................................96應用電路....................................................................................................97第二部份 程序語言.....................................................................99第二章 指令集介紹.................................................................................101指令集......................................................................................................101指令周期..........................................................................................101數據的傳送......................................................................................101算術運算..........................................................................................102邏輯和移位運算..............................................................................102分支和控制的轉換..........................................................................102位運算..............................................................................................102查表運算..........................................................................................103其它運算..........................................................................................103指令設定一覽表......................................................................................104慣例..................................................................................................104I/O 型單片機使用手冊iv第三章 指令定義.....................................................................................107第四章 匯編語言和編譯器.....................................................................121常用符號..................................................................................................121語句語法..................................................................................................122名稱..................................................................................................122操作項..............................................................................................122操作數項..........................................................................................122注解..................................................................................................122編譯偽指令..............................................................................................123條件編譯偽指令..............................................................................123文件控制偽指令..............................................................................124程序偽指令......................................................................................126數據定義偽指令..............................................................................130宏指令..............................................................................................132匯編語言指令..........................................................................................136名稱..................................................................................................136助記符..............................................................................................136操作數、運算子和表達式..............................................................136其它..........................................................................................................139前置引用..........................................................................................139局部標號..........................................................................................139匯編語言保留字..............................................................................140編譯器選項..............................................................................................141編譯列表文件格式..................................................................................141源程序列表......................................................................................141編譯總結..........................................................................................142其它..................................................................................................142第三部份 開發工具................................................................... 145第五章 單片機開發工具.........................................................................147HT-IDE 集成開發環境............................................................................147盛群單片機仿真器(HT-ICE) ..................................................................149HT-ICE 接口卡.................................................................................149OTP 燒寫器.....................................................................................149OTP 適配卡.....................................................................................149系統配置..................................................................................................150HT-ICE 接口卡設置........................................................................151安裝..........................................................................................................153系統要求..........................................................................................153硬件安裝..........................................................................................153軟件安裝..........................................................................................154目錄v第六章 快速開始.....................................................................................159步驟一：建立一個新項目..............................................................159步驟二：將源程序文件加到項目中..............................................159步驟三：編譯項目..........................................................................159步驟四：燒寫OTP 單片機.............................................................160步驟五：傳送程序與掩膜選項單至Holtek ..................................160附錄............................................................................................... 161附錄A 特性曲線圖...................................................................................163附錄B 封裝信息.......................................................................................173
上傳時間： 2013-10-18
上傳用戶：blacklee
The PCA9534 is a 16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, 400 kHz clock frequency, and smaller packaging. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.
上傳時間： 2013-11-17
上傳用戶：vodssv
Nios 的用戶定義接口邏輯實例 有許多人問我使用 Nios 的用戶定義接口邏輯怎么用，想了幾天決定設計一個實例來說明。該例為一個使用 user to interface logic 設計的 PWM 實例，其中包括三個文件： plus32.v 是一個為 32bit nios 設計的 pwm 實例。 plus16.v 是一個為 16bit nios 設計的 pwm 實例。 test.s 是一個使用中斷調用 pwm 的匯編語言測試程序。以上模塊和程序均調試通過，并可穩定工作。這里讓大家參考是使大家通過該例來真正理解 user to interface logic 設計方法，和nios 中通過匯編調用中斷的方法，所以超值喔。另外熱烈歡迎大家的指導。 注：在設計 Nios 時，將你調用的 user to interface logic 插件重命名為 plus_0，這樣我的 test.s 可不作任何改動，你就可用示波器通過 nios 的 plus 管腳觀察到一個要求的輸出。
上傳時間： 2013-11-15
上傳用戶：cc1915
linux 中斷和設備驅動 本章介紹L i n u x內核是如何維護它支持的文件系統中的文件的，我們先介紹 V F S ( Vi r t u a lFile System，虛擬文件系統)，再解釋一下L i n u x內核的真實文件系統是如何得到支持的。L i n u x的一個最重要特點就是它支持許多不同的文件系統。這使 L i n u x非常靈活，能夠與許多其他的操作系統共存。在寫這本書的時候， L i n u x共支持1 5種文件系統： e x t、 e x t 2、x i a、 m i n i x、 u m s d o s、 msdos 、v f a t、 p r o c、 s m b、 n c p、 i s o 9 6 6 0、 s y s v、 h p f s、 a ffs 和u f s。無疑隨著時間的推移，L i n u x支持的文件系統數還會增加。
上傳時間： 2013-11-13
上傳用戶：zxh122
The PCA9534 is a 16-pin CMOS device that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvements include higher drive capability, 5 V I/O tolerance, lower supply current, individual I/O configuration, 400 kHz clock frequency, and smaller packaging. I/O expanders provide a simple solution when additional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.
上傳時間： 2013-10-10
上傳用戶：inwins
The PCA9535 and PCA9535C are 24-pin CMOS devices that provide 16 bits of GeneralPurpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and wasdeveloped to enhance the NXP Semiconductors family of I2C-bus I/O expanders. Theimprovements include higher drive capability, 5 V I/O tolerance, lower supply current,individual I/O configuration, and smaller packaging. I/O expanders provide a simplesolution when additional I/O is needed for ACPI power switches, sensors, push buttons,LEDs, fans, etc.
上傳時間： 2013-10-21
上傳用戶：愛死愛死
The PCA9517 is a CMOS integrated circuit that provides level shifting between lowvoltage (down to 0.9 V) and higher voltage (2.7 V to 5.5 V) I2C-bus or SMBus applications.While retaining all the operating modes and features of the I2C-bus system during thelevel shifts, it also permits extension of the I2C-bus by providing bidirectional buffering forboth the data (SDA) and the clock (SCL) lines, thus enabling two buses of 400 pF. Usingthe PCA9517 enables the system designer to isolate two halves of a bus for both voltageand capacitance. The SDA and SCL pins are over voltage tolerant and arehigh-impedance when the PCA9517 is unpowered.
標簽： translating Level 9517 PCA
上傳時間： 2013-12-25
上傳用戶：wsf950131
The PCA9555 is a 24-pin CMOS device that provides 16 bits of General Purpose parallelInput/Output (GPIO) expansion for I2C-bus/SMBus applications and was developed toenhance the NXP Semiconductors family of I2C-bus I/O expanders. The improvementsinclude higher drive capability, 5 V I/O tolerance, lower supply current, individual I/Oconfiguration, and smaller packaging. I/O expanders provide a simple solution whenadditional I/O is needed for ACPI power switches, sensors, push buttons, LEDs, fans, etc.The PCA9555 consists of two 8-bit Configuration (Input or Output selection); Input, Outputand Polarity Inversion (active HIGH or active LOW operation) registers. The systemmaster can enable the I/Os as either inputs or outputs by writing to the I/O configurationbits. The data for each Input or Output is kept in the corresponding Input or Outputregister. The polarity of the read register can be inverted with the Polarity Inversionregister. All registers can be read by the system master. Although pin-to-pin and I2C-busaddress compatible with the PCF8575, software changes are required due to theenhancements, and are discussed in Application Note AN469.
上傳時間： 2013-11-13
上傳用戶：fredguo
RSM232隔離RS-232收發器具備電源隔離、電氣隔離、RS-232收發器，有提高系統穩定性，簡化設計等諸多優點。完全符合EIA/TIA-232E和ITU-T V.28規格，采用5V電源供電，具有2500VDC的隔離電壓，波特率可高達115200bps
上傳時間： 2014-02-22
上傳用戶：ouyangtongze
The TRS232E is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/RS-232-Fvoltage levels from a single 5-V supply. Each receiver converts TIA/RS-232-F inputs to 5-V TTL/CMOS levels.This receiver has a typical threshold of 1.3 V, a typical hysteresis of 0.5 V, and can accept ±30-V inputs. Eachdriver converts TTL/CMOS input levels into TIA/RS-232-F levels. The driver, receiver, and voltage-generatorfunctions are available as cells in the Texas Instruments LinASIC™ library.
上傳時間： 2013-10-07
上傳用戶：waitingfy
