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    參數(shù)資料
    型號: MC80F0224K
    廠商: Electronic Theatre Controls, Inc.
    元件分類: 8位微控制器
    英文描述: 8-BIT SINGLE-CHIP MICROCONTROLLERS
    中文描述: 8位單晶片微控制器
    文件頁數(shù): 91/128頁
    文件大?。?/td> 1408K
    代理商: MC80F0224K
    Preliminary
    MC80F0208/16/24
    MAR. 2005 Ver 0.2
    87
    The Basic Interval Timer Interrupt is generated by BITIF which
    is set by a overflow in the timer counter register.
    The UART0 receive/transmit interrupt is generated by UART0IF
    is set by completion of UART0 data reception or transmission.
    The IFR(Interrupt Flag Register) is used for discrimination of the
    interrupt source among these two UART0 receive and UART0
    transmit Interrupt.
    The SIO interrupt is generated by SIOIF which is set by comple-
    tion of SIO data reception or transmission.
    The interrupts are controlled by the interrupt master enable flag
    I-flag (bit 2 of PSW on Figure 8-3), the interrupt enable register
    (IENH, IENL), and the interrupt request flags (in IRQH and
    IRQL) except Power-on reset and software BRK interrupt. The
    Table 19-1 shows the Interrupt priority.
    Vector addresses are shown in Figure 8-6. Interrupt enable regis-
    ters are shown in Figure 19-2. These registers are composed of in-
    terrupt enable flags of each interrupt source and these flags
    determines whether an interrupt will be accepted or not. When
    enable flag is “0”, a corresponding interrupt source is prohibited.
    Note that PSW contains also a master enable bit, I-flag, which
    disables all interrupts at once.
    Figure 19-2 Interrupt Enable Flag Register
    Reset/Interrupt
    Symbol
    Priority
    Hardware Reset
    External Interrupt 0
    External Interrupt 1
    External Interrupt 2
    External Interrupt 3
    UART0 Rx/Tx Interrupt
    UART1 Rx/Tx Interrupt
    Serial Input/Output
    Timer/Counter 0
    Timer/Counter 1
    Timer/Counter 2
    Timer/Counter 3
    Timer/Counter 4
    ADC Interrupt
    Watchdog/Watch Timer
    Basic Interval Timer
    RESET
    INT0
    INT1
    INT2
    INT3
    UART0
    UART1
    SIO
    Timer 0
    Timer 1
    Timer 2
    Timer 3
    Timer 4
    ADC
    WDT_WT
    BIT
    1
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    Table 19-1 Interrupt Priority
    INT3E
    R/W
    INT0E
    Timer/Counter 0 interrupt enable flag
    Serial Communication interrupt enable flag
    UART1 Tx/Rx interrupt enable flag
    UART0 Tx/Rx interrupt enable flag
    INITIAL VALUE: 0000 0000
    B
    ADDRESS: 0EA
    H
    IENH
    INT1E
    MSB
    LSB
    SIOE
    T0E
    UART0E
    INT2E
    R/W
    R/W
    External interrupt 0 enable flag
    External interrupt 1 enable flag
    External interrupt 2 enable flag
    External interrupt 3 enable flag
    R/W
    R/W
    R/W
    R/W
    R/W
    R/W
    T1E
    INITIAL VALUE: 0000 0000
    B
    ADDRESS: 0EB
    H
    IENL
    T2E
    MSB
    R/W
    Timer/Counter 4 interrupt enable flag
    Timer/Counter 3 interrupt enable flag
    Timer/Counter 2 interrupt enable flag
    Timer/Counter 1 interrupt enable flag
    R/W
    R/W
    LSB
    R/W
    ADCE WDTE
    R/W
    R/W
    R/W
    T3E
    T4E
    WTE
    BITE
    Basic Interval Timer interrupt enable flag
    Watch timer interrupt enable flag
    Watchdog timer interrupt enable flag
    A/D Converter interrupt enable flag
    UART1E
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