參數(shù)資料
        型號: MCF51QM128VFM
        廠商: FREESCALE SEMICONDUCTOR INC
        元件分類: 微控制器/微處理器
        英文描述: FLASH, 50 MHz, MICROCONTROLLER, QCC32
        封裝: 5 X 5 MM, QFN-32
        文件頁數(shù): 46/72頁
        文件大?。?/td> 1031K
        代理商: MCF51QM128VFM
        6.8.5 I2S/SAI Switching Specifications
        This section provides the AC timing for the I2S/SAI module in master mode (clocks are
        driven) and slave mode (clocks are input). All timing is given for noninverted serial clock
        polarity (TCR2[BCP] is 0, RCR2[BCP] is 0) and a noninverted frame sync (TCR4[FSP]
        is 0, RCR4[FSP] is 0). If the polarity of the clock and/or the frame sync have been
        inverted, all the timing remains valid by inverting the bit clock signal (BCLK) and/or the
        frame sync (FS) signal shown in the following figures.
        All timing shown is also with respect to input signal transitions of 3 ns and a 50 pF
        maximum load.
        Table 36. I2S/SAI master mode timing
        Num.
        Characteristic
        Min.
        Max.
        Unit
        Operating voltage
        1.71
        3.6
        V
        S1
        I2S_MCLK cycle time1
        40
        ns
        S2
        I2S_MCLK pulse width high/low
        45%
        55%
        MCLK period
        S3
        I2S_TX_BCLK cycle time (output)1
        I2S_RX_BCLK cycle time (output)1
        80
        160
        ns
        S4
        I2S_TX_BCLK pulse width high/low
        45%
        55%
        BCLK period
        S5
        I2S_TX_BCLK/I2S_RX_BCLK to I2S_TX_FS/
        I2S_RX_FS output valid
        15
        ns
        S6
        I2S_TX_BCLK/I2S_RX_BCLK to I2S_TX_FS/
        I2S_RX_FS output invalid
        0
        ns
        S7
        I2S_TX_BCLK to I2S_TXD valid
        15
        ns
        S8
        I2S_TX_BCLK to I2S_TXD invalid
        0
        ns
        S9
        I2S_RXD/I2S_RX_FS input setup before
        I2S_RX_BCLK
        25
        ns
        S10
        I2S_RXD/I2S_RX_FS input hold after I2S_RX_BCLK
        0
        ns
        S11
        I2S_TX_FS input assertion to I2S_TXD output valid2
        21
        ns
        1. This parameter is limited in VLPx modes.
        2. Applies to first bit in each frame and only if the TCR4[FSE] bit is clear
        Communication interfaces
        MCF51JF128 Advance Information Data Sheet, Rev. 3, 08/2011.
        50
        Preliminary
        Freescale Semiconductor, Inc.
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        參數(shù)描述
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