• 參數資料
    型號: TMJ320C6211GNY167
    廠商: Texas Instruments, Inc.
    元件分類: 數字信號處理
    英文描述: FIXED-POINT DIGITAL SIGNAL PROCESSORS
    中文描述: 定點數字信號處理器
    文件頁數: 74/83頁
    文件大?。?/td> 1176K
    代理商: TMJ320C6211GNY167
    TMS320C6211, TMS320C6211B
    FIXED-POINT DIGITAL SIGNAL PROCESSORS
    SPRS073K
    AUGUST 1998
    REVISED MARCH 2004
    74
    POST OFFICE BOX 1443
    HOUSTON, TEXAS 77251
    1443
    MULTICHANNEL BUFFERED SERIAL PORT TIMING (CONTINUED)
    timing requirements for McBSP as SPI master or slave: CLKSTP = 10b, CLKXP = 1
    (see Figure 41)
    NO.
    150
    167
    UNIT
    MASTER
    MIN
    26
    4
    SLAVE
    MIN
    2
    6P
    6 + 12P
    MAX
    MAX
    4
    5
    t
    su(DRV-CKXH)
    t
    h(CKXH-DRV)
    Setup time, DR valid before CLKX high
    Hold time, DR valid after CLKX high
    ns
    ns
    P = 1/CPU clock frequency in ns. For example, when running parts at 167 MHz, use P = 6 ns.
    For all SPI slave modes, CLKG is programmed as 1/2 of the CPU clock by setting CLKSM = CLKGDV = 1.
    switching characteristics over recommended operating conditions for McBSP as SPI master or
    slave: CLKSTP = 10b, CLKXP = 1
    (see Figure 41)
    NO.
    PARAMETER
    150
    167
    UNIT
    MASTER
    §
    MIN
    T
    9
    H
    9
    9
    SLAVE
    MIN
    MAX
    T + 9
    H + 9
    MAX
    1
    2
    3
    t
    h(CKXH-FXL)
    t
    d(FXL-CKXL)
    t
    d(CKXL-DXV)
    Hold time, FSX low after CLKX high
    Delay time, FSX low to CLKX low
    #
    Delay time, CLKX low to DX valid
    Disable time, DX high impedance following last data bit from
    CLKX high
    ns
    ns
    ns
    9
    6P + 4
    10P + 20
    6
    t
    dis(CKXH-DXHZ)
    H
    9
    H + 9
    ns
    7
    t
    dis(FXH-DXHZ)
    Disable time, DX high impedance following last data bit from
    FSX high
    2P + 3
    6P + 20
    ns
    8
    t
    d(FXL-DXV)
    Delay time, FSX low to DX valid
    4P + 2
    8P + 20
    ns
    P = 1/CPU clock frequency in ns. For example, when running parts at 167 MHz, use P = 6 ns.
    For all SPI slave modes, CLKG is programmed as 1/2 of the CPU clock by setting CLKSM = CLKGDV = 1.
    §
    S =
    Sample rate generator input clock = 2P if CLKSM = 1 (P = 1/CPU clock frequency)
    =
    Sample rate generator input clock = P_clks if CLKSM = 0 (P_clks = CLKS period)
    T =
    CLKX period = (1 + CLKGDV) * S
    H =
    CLKX high pulse width = (CLKGDV/2 + 1) * S if CLKGDV is even
    = (CLKGDV + 1)/2 * S if CLKGDV is odd or zero
    L =
    CLKX low pulse width
    = (CLKGDV/2) * S if CLKGDV is even
    = (CLKGDV + 1)/2 * S if CLKGDV is odd or zero
    FSRP = FSXP = 1. As a SPI master, FSX is inverted to provide active-low slave-enable output. As a slave, the active-low signal input on FSX
    and FSR is inverted before being used internally.
    CLKXM = FSXM = 1, CLKRM = FSRM = 0 for master McBSP
    CLKXM = CLKRM = FSXM = FSRM = 0 for slave McBSP
    #
    FSX should be low before the rising edge of clock to enable slave devices and then begin a SPI transfer at the rising edge of the master clock
    (CLKX).
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