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  • 參數(shù)資料
    型號: Z86E3016ESE
    廠商: ZILOG INC
    元件分類: 微控制器/微處理器
    英文描述: Z8 4K OTP Microcontroller
    中文描述: 8-BIT, UVPROM, 16 MHz, MICROCONTROLLER, CDIP28
    封裝: WINDOWED, HERMETIC SEALED, CERDIP-28
    文件頁數(shù): 33/66頁
    文件大?。?/td> 453K
    代理商: Z86E3016ESE
    Z86E30/E31/E40
    Zilog
    Z8 4K OTP Microcontroller
    DS97Z8X0500
    P R E L I M I N A R Y
    33
    1
    EPROM Protect.
    When in ROM Protect Mode, and exe-
    cuting out of External Program Memory, instructions LDC,
    LDCI, LDE, and LDEI cannot read Internal Program Mem-
    ory.
    When in ROM Protect Mode and executing out of Internal
    Program Memory, instructions LDC, LDCI, LDE, and LDEI
    can read Internal Program Memory.
    Data Memory
    (/DM). In EPROM Mode, the Z86E40 can
    address up to 60 KB of external data memory beginning at
    location 4096. In ROMless mode, the Z86E40 can address
    up to 64 KB of data memory. External data memory may
    be included with, or separated from, the external program
    memory space. /DM, an optional I/O function that can be
    programmed to appear on pin P34, is used to distinguish
    between data and program memory space (Figure 23).
    The state of the /DM signal is controlled by the type of in-
    struction being executed. An LDC opcode references
    PROGRAM (/DM inactive) memory, and an LDE instruc-
    tion references data (/DM active Low) memory.
    Figure 23. Data Memory Map
    65535
    4096
    4095
    0
    External
    Data
    Memory
    Not Addressable
    External
    Data
    Memory
    EPROM
    ROMless
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