•         


    
    



    

    
  
    
    
    
    
  
    
  
  

    





    


    
 
 




 
 


    

    
    


    參數(shù)資料
    

    


    


    
型號(hào)：
MC68HC901FN

    

    
廠商：
MOTOROLA INC

    

    
元件分類：
外設(shè)及接口

    

    
英文描述：
Multi-Function Peripheral

    

    
中文描述：
MULTIFUNCTION PERIPHERAL, PQCC52

    

    
封裝：
PLASTIC, LCC-52

    

    
文件頁數(shù)：
50/73頁

    

    
文件大?。?/td>
274K

    

    
代理商：
MC68HC901FN


    

    

    

	
    
    
    

    
    
	
    Universal Synchronous/Asynchronous Receiver-Transmitter
    7-7
     MC68HC901 USER’S MANUAL
    MOTOROLA
    RE — Receiver Enable
    This bit should not be set until the receiver clock is active. When the transmitter is disabled 
    in auto-turnaround mode this bit is set.
    1 = Receiver operation is enabled.
    0 = Receiver is disabled.
    7.2.3  Special Receive Conditions
    Certain receive conditions relating to the overrun error flag and the break detect flag require 
    further explanation. Consider the following examples:
    1. A break is received while the receive buffer is full. This does not produce an overrun 
    condition. Only the B flag will be set after the receiver buffer is read.
    2. A new word is received, and the receive buffer is full. A break is received before the 
    receive buffer is read.
    Both the B and OE flags will be set when the buffer full condition is satisfied.
    7.3  TRANSMITTER
    The transmit buffer is loaded by writing to the USART data register (UDR). The data 
    character will be transferred to an internal 8-bit shift register when the last character in the 
    shift register has been transmitted. This transfer will produce a buffer empty condition. If the 
    transmitter completes the transmission of the character in the shift register before a new 
    character is written to the transmit buffer, an underrun error will occur. In the asynchronous 
    character format, the transmitter will send a mark until the transmit buffer is written. In the 
    synchronous character format, the transmitter will continuously send the synchronous 
    character until the transmit buffer is written.
    The transmit buffer can be loaded prior to enabling the transmitter. After the transmitter is 
    enabled, there is a delay before the first bit is output. The serial output line (SO) should be 
    programmed to be high, low, or high impedance (by setting the appropriate bits in the 
    transmitter status register (TSR)) before the transmitter is enabled forcing the output line to 
    the desired state until the first bit of the first character is shifted out. The state of the H and 
    L bits in the TSR determine the state of the first transmitted bit after the transmitter is 
    enabled. If the high impedance mode is selected prior to the transmitter being enabled, the 
    first bit transmitted is indeterminate. Note that the SO line will always be driven high for one 
    bit time prior to the character in the transmit shift register being transmitted when the 
    transmitter is first enabled.
    When the transmitter is disabled, any character currently being transmitted will continue to 
    completion. However, any character in the transmit buffer will not be transmitted and will 
    remain in the buffer. Thus, no buffer empty condition will occur. If the buffer is empty when 
    the transmitter is disabled, the buffer empty condition will remain, but no underrun condition 
    will be generated when the character in transmission is completed. If no character is being 
    transmitted when the transmitter is disabled, the transmitter will stop at the next rising edge 
    of the internal shift clock.
    
    
    
    
    
    


    


    

    相關(guān)PDF資料
    		

    PDF描述
    		

    
    

    
MC68HC901P
Multi-Function Peripheral

    

    
MC68HC916X1
16-Bit Modular Microcontroller(16位模塊化微控制器)

    

    
MC68HC9D60
Advance Information - Rev 4.0

    

    
MC68HC12D60
Advance Information - Rev 4.0

    

    
MC68HCL05C8A
8-Bit Microcontroller Units (MCU).(8位微控制器)

    

    

    

    


    


    

    相關(guān)代理商/技術(shù)參數(shù)
    		

    參數(shù)描述
    		

    
    

    
MC68HC908AB32CFU
功能描述:IC MCU 8MHZ 32K FLASH 64-QFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC08 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲(chǔ)器容量:64KB（64K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名稱:497-9032STM32F101T8U6-ND

    

    
MC68HC908AB32MFU
 制造商:Rochester Electronics LLC 功能描述:32K FLASH & 512 EE - Bulk

    

    
MC68HC908AB32MPB
功能描述:IC MCU 32K FLASH 8MHZ 64-LQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC08 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設(shè)備:POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):21 程序存儲(chǔ)器容量:40KB（20K x 16） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323

    

    
MC68HC908AP16CB
功能描述:IC MCU 16K FLASH 8MHZ 42SDIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC08 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設(shè)備:POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):21 程序存儲(chǔ)器容量:40KB（20K x 16） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323

    

    
MC68HC908AP16CBE
 制造商:Freescale Semiconductor 功能描述:

    

    
    
    
    
	
    	
    
    
     
     
    發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。
    
 
     
    

   	  
    
     

    
                    			    				      
    
                
    
                  
    
                    
                    
    
                      
    
                      
                      
    采購需求
      (若只采購一條型號(hào)，填寫一行即可)
    
                      
                      
    發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)
    
                      
                      
    發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)
    
                       
                        
    
                                
                                
    
                                    *型號(hào)
                                    *數(shù)量
                                    廠商
                                    批號(hào)
                                    封裝
                                  
    
                                    
                                
                                
    
                                    
                                        
    
                                            
                                            
                                        
    
                                        		
                                     
                                    
                                        
    
                                        		
                                    
                                        
    
                                        		
                                    
                                        
    
                                        		
                                    
                                        
    
                                        		
                                  
    
                                  
                                   
                                    
                            
    
                             
                             
							                            
    
                          添加更多采購
    
                      
    
                      
                      
    
                      
                      
    我的聯(lián)系方式
    
                     
                     
                       
    
                                
                                
                                
    
                                    
                                         *
                                    
                                    
                                  
    
                                  
                                  
    
                                    
                                         *
                                    
                                    
                                  
    
                                  
                                  
    
                                    
                                        
                                    
                                    
                                  
    
                                  
                                  
    
                                    
                                         *