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    參數(shù)資料
    型號(hào): MF280C51T-12D
    廠商: TEMIC SEMICONDUCTORS
    元件分類: 微控制器/微處理器
    英文描述: 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQFP44
    文件頁數(shù): 10/170頁
    文件大?。?/td> 4133K
    代理商: MF280C51T-12D
    107
    ATtiny4/5/9/10 [DATASHEET]
    8127F–AVR–02/2013
    15.3.1
    Non-Volatile Memory Lock Bits
    The ATtiny4/5/9/10 provide two Lock Bits, as shown in Table 15-1.
    The Lock Bits can be left unprogrammed ("1") or can be programmed ("0") to obtain the additional security shown
    in Table 15-2. Lock Bits can be erased to "1" with the Chip Erase command, only.
    Notes:
    1. Program the configuration section bits before programming NVLB1 and NVLB2.
    2. "1" means unprogrammed, "0" means programmed
    15.3.2
    Flash Memory
    The embedded Flash memory of ATtiny4/5/9/10 has four separate sections, as shown in Table 15-3 and Table 15-
    3.
    Table 15-1.
    Lock Bit Byte
    Lock Bit
    Bit No
    Description
    Default Value
    7
    1 (unprogrammed)
    6
    1 (unprogrammed)
    5
    1 (unprogrammed)
    4
    1 (unprogrammed)
    3
    1 (unprogrammed)
    2
    1 (unprogrammed)
    NVLB2
    1
    Non-Volatile Lock Bit
    1 (unprogrammed)
    NVLB1
    0
    Non-Volatile Lock Bit
    1 (unprogrammed)
    Table 15-2.
    Lock Bit Protection Modes
    Memory Lock Bits (1)
    Protection Type
    Lock Mode
    NVLB2 (2)
    NVLB1 (2)
    1
    No Memory Lock feature Enabled
    21
    0
    Further Programming of the Flash memory is disabled in
    the external programming mode. The configuration
    section bits are locked in the external programming
    mode
    30
    0
    Further programming and verification of the flash is
    disabled in the external programming mode. The
    configuration section bits are locked in the external
    programming mode
    Table 15-3.
    Number of Words and Pages in the Flash (ATtiny9/10)
    Section
    Size (Bytes)
    Page Size (Words)
    Pages
    WADDR
    PADDR
    Code (program memory)
    1024
    8
    64
    [3:1]
    [9:4]
    Configuration
    8
    1
    [3:1]
    Signature (1)
    16
    8
    2
    [3:1]
    [4:4]
    Calibration (1)
    8
    1
    [3:1]
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