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  • 參數(shù)資料
    型號: MPC8535EBVTANGA
    廠商: FREESCALE SEMICONDUCTOR INC
    元件分類: 微控制器/微處理器
    英文描述: 32-BIT, 800 MHz, MICROPROCESSOR, PBGA783
    封裝: 29 X 29 MM, 2.80 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, FCBGA-783
    文件頁數(shù): 92/126頁
    文件大?。?/td> 2861K
    代理商: MPC8535EBVTANGA
    MPC8535E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 3
    enhanced Local Bus Controller (eLBC)
    Freescale Semiconductor
    68
    Table 53 describes the general timing parameters of the local bus interface at BVDD = 1.8 V DC
    Output hold from local bus clock for LAD/LDP
    tLBKHOX2
    0.8
    ns
    3
    Local bus clock to output high Impedance (except LAD/LDP
    and LALE)
    —tLBKHOZ1
    —2.6
    ns
    5
    Local bus clock to output high impedance for LAD/LDP
    tLBKHOZ2
    —2.6
    ns
    5
    Note:
    1. The symbols used for timing specifications herein follow the pattern of t(First two letters of functional block)(signal)(state) (reference)(state)
    for inputs and t(First two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tLBIXKH1 symbolizes local bus
    timing (LB) for the input (I) to go invalid (X) with respect to the time the tLBK clock reference (K) goes high (H), in this case for
    clock one(1). Also, tLBKHOX symbolizes local bus timing (LB) for the tLBK clock reference (K) to go high (H), with respect to the
    output (O) going invalid (X) or output hold time.
    2. All timings are in reference to LSYNC_IN for PLL enabled and internal local bus clock for PLL bypass mode.
    3. All signals are measured from BVDD/2 of the rising edge of LSYNC_IN for PLL enabled or internal local bus clock for PLL
    bypass mode to 0.4
    × BVDD of the signal in question for 2.5-V signaling levels.
    4. Input timings are measured at the pin.
    5. For purposes of active/float timing measurements, the Hi-Z or off state is defined to be when the total current delivered through
    the component pin is less than or equal to the leakage current specification.
    6. tLBOTOT is a measurement of the minimum time between the negation of LALE and any change in LAD. tLBOTOT is guaranteed
    with LBCR[AHD] = 0.
    7. Maximum possible clock skew between a clock LCLK[m] and a relative clock LCLK[n]. Skew measured between
    complementary signals at BVDD/2.
    Table 53. Local Bus General Timing Parameters (BVDD = 1.8 V DC)
    Parameter
    Configuration Symbol 1
    Min
    Max
    Unit
    Notes
    Local bus cycle time
    tLBK
    7.5
    12
    ns
    2
    Local bus duty cycle
    tLBKH/tLBK
    43
    57
    %
    LCLK[n] skew to LCLK[m] or LSYNC_OUT
    —tLBKSKEW
    150
    ps
    7
    Input setup to local bus clock (except LUPWAIT)
    tLBIVKH1
    2.4
    ns
    3, 4
    LUPWAIT input setup to local bus clock
    tLBIVKH2
    1.9
    ns
    3, 4
    Input hold from local bus clock (except LUPWAIT)
    tLBIXKH1
    1.1
    ns
    3, 4
    LUPWAIT input hold from local bus clock
    tLBIXKH2
    1.1
    ns
    3, 4
    LALE output transition to LAD/LDP output transition (LATCH
    setup and hold time)
    —tLBOTOT
    1.2
    ns
    6
    Local bus clock to output valid (except LAD/LDP and LALE)
    tLBKHOV1
    —3.2
    ns
    Local bus clock to data valid for LAD/LDP
    tLBKHOV2
    —3.2
    ns
    3
    Local bus clock to address valid for LAD
    tLBKHOV3
    —3.2
    ns
    3
    Local bus clock to LALE assertion
    tLBKHOV4
    —3.2
    ns
    3
    Output hold from local bus clock (except LAD/LDP and LALE)
    tLBKHOX1
    0.9
    ns
    3
    Table 52. Local Bus General Timing Parameters (BVDD = 2.5 V DC) (continued)
    Parameter
    Configuration Symbol 1
    Min
    Max
    Unit
    Notes
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