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  • 參數(shù)資料
    型號: MC68HC11A8BVP2
    廠商: MOTOROLA INC
    元件分類: 微控制器/微處理器
    英文描述: HCMOS Single-Chip Microcontroller
    中文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDIP48
    封裝: DIP-48
    文件頁數(shù): 34/158頁
    文件大?。?/td> 776K
    代理商: MC68HC11A8BVP2
    MOTOROLA
    3-8
    ON-CHIP MEMORY
    MC68HC11A8
    TECHNICAL DATA
    3
    3.5.2.3 Bulk Erase
    The following program segment demonstrates how to bulk erase the 512-byte EE-
    PROM. The CONFIG register is not affected in this example.
    3.5.2.4 Row Erase
    The following program segment demonstrates the row erase function. A ‘row’ is six-
    teen bytes ($B600-$B60F, $B610-$B61F... $B7F0-$B7FF). This type of erase opera-
    tion saves time compared to byte erase when large sections of EEPROM are to be
    erased.
    * On entry, A = data to be programmed and X = EEPROM address
    PROG
    LDAB
    #$02
    STAB
    $103B
    Set EELAT Bit (EEPGM = 0)
    STAA
    0,X
    Store Data to EEPROM Address
    LDAB
    #$03
    STAB
    $103B
    Set EEPGM Bit (EELAT = 1)
    JSR
    DLY10
    Delay 10 ms
    CLR
    $103B
    Turn Off High Voltage and Set to READ
    Mode
    BULKE
    LDAB
    STAB
    STAB
    LDAB
    STAB
    JSR
    CLR
    #$06
    $103B
    $B600
    #$07
    $103B
    DLY10
    $103B
    Set to Bulk Erase Mode
    Write any Data to any EEPROM Address
    Turn On Programming Voltage
    Delay 10 ms
    Turn Off High Voltage and Set to READ
    Mode
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