參數(shù)資料
    

    


    


    
型號：
MC68HC705P6AMP

    

    
廠商：
MOTOROLA INC

    

    
元件分類：
微控制器/微處理器

    

    
英文描述：
8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP28

    

    
封裝：
PLASTIC, DIP-28

    

    
文件頁數(shù)：
125/130頁

    

    
文件大?。?/td>
1541K

    

    
代理商：
MC68HC705P6AMP


    

    

    

	
    
    
    

    
    
	
    Mask Option Register (MOR)
    Advance Information
    MC68HC705P6A — Rev. 2.0
    94
    Mask Option Register (MOR)
    MOTOROLA
    11.4 MOR Programming
    The contents of the MOR should be programmed in bootloader mode
    using the hardware shown in Figure 10-2. In order to allow
    programming, all the implemented bits in the MOR are essentially read-
    write bits in bootloader mode as shown in Figure 11-1.
    The programming of the MOR is the same as user EPROM.
    1. Set the ELAT bit in the EPROG register.
    2. Write the desired data to the desired MOR address.
    3. Set the EPGM bit in the EPROG.
    4. Wait for the programming time (tEPGM).
    5. Clear the ELAT and EPGM bits in the EPROG.
    6. Remove the programming voltage from the IRQ/VPP pin.
    A sample routine to program a byte of EPROM is shown in Table 11-2.
    Once the MOR bits have been programmed, the options are not loaded
    into the MOR registers until the part is reset.
    Table 11-2. MOR Programming Routine
    001C
    00FF
    0023
    1EFF
    1F00
    0000
    EPROG
    DATA2
    DATA1
    MOR2
    MOR1
    EPGM
    EQU
    $1C
    EQU
    $FF
    EQU
    #23
    EQU
    $1EFF
    EQU
    $1F00
    EQU
    $00
    PROGRAMMING REG
    SAMPLE MOR VALUES
    MOPR ADDRESSES
    EPGM BIT IN EPROG REG
    00E0
    ORG
    $E0
    00E0
    00E2
    00E4
    00E6
    00E9
    00EB
    00ED
    00EF
    A6 04
    B7 1C
    A6 FF
    C7 1E FF
    12 1C
    AD 03
    3F 1C
    81
    LDA
    #$04
    STA
    EPROG
    LDA
    #DATA2
    STA
    MOR2
    BSET EPGM,EPROG
    BSR
    DELAY
    CLR
    EPROG
    RTS
    SET ELAT BIT
    IN EPGM REG AT $1C
    DATA BYTE
    WRITE IT TO MOR LOC
    TURN ON PGM VOLTAGE
    WAIT 4 ms MINIMUM
    CLR EPGM REGISTER
    
    
    
    
    
    


    


    

    相關(guān)PDF資料
    		

    PDF描述
    		

    
    

    
MC68HC705P6CDW
8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28

    

    
MC68HC705P6P
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MC68HC705P6CS
8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, CDIP28

    

    

    

    


    


    

    相關(guān)代理商/技術(shù)參數(shù)
    		

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MC68HC705P6CDW
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MC68HC705P6CP
 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述:

    

    
MC68HC705P6ECDW
 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:

    

    
MC68HC705SR3CP
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MC68HC705SR3CPE
功能描述:8位微控制器 -MCU 8B MCU 192 BYTES RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT

    

    
    
    
    
	
    	
    
    
     
     
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