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TNETV2664FIBZWT Datasheet(PDF) 206 Page - Texas Instruments |
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TNETV2664FIBZWT Datasheet(HTML) 206 Page - Texas Instruments |
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206 / 249 page ![]() TMS320C6424 SPRS347D – MARCH 2007 – REVISED DECEMBER 2009 www.ti.com 6.14.1.3 McASP0 Electrical Data/Timing 6.14.1.3.1 Multichannel Audio Serial Port (McASP) Timing Table 6-53. Timing Requirements for McASP (see Figure 6-32 and Figure 6-33)(1) -7/-6/-5/-4 -L/-Q6/-Q5/-Q4 NO. UNIT MIN MAX 1 tc(AHCKRX) Cycle time, AHCLKR/X 25 ns 2 tw(AHCKRX) Pulse duration, AHCLKR/X high or low 10 ns 3 tc(CKRX) Cycle time, ACLKR/X(2) ACLKR/X ext 25 ns 4 tw(CKRX) Pulse duration, ACLKR/X high or low ACLKR/X ext 10 ns ACLKR/X int 11 ns 5 tsu(FRX-CKRX) Setup time, AFSR/X input valid before ACLKR/X latches data ACLKR/X ext 3 ns ACLKR/X int 0 ns ACLKR/X ext 4 ns 6 th(CKRX-FRX) Hold time, AFSR/X input valid after ACLKR/X latches data input ACLKR/X ext 6 ns output ACLKR/X int 11 ns 7 tsu(AXR-CKRX) Setup time, AXR input valid before ACLKR/X latches data ACLKR/X ext 3 ns ACLKR/X int 3 ns ACLKR/X ext 4 ns 8 th(CKRX-AXR) Hold time, AXR input valid after ACLKR/X latches data input ACLKR/X ext 6 ns output (1) ACLKX internal: ACLKXCTL.CLKXM=1, PDIR.ACLKX = 1 ACLKX external input: ACLKXCTL.CLKXM=0, PDIR.ACLKX=0 ACLKX external output: ACLKXCTL.CLKXM=0, PDIR.ACLKX=1 ACLKR internal: ACLKRCTL.CLKRM=1, PDIR.ACLKR = 1 ACLKR external input: ACLKRCTL.CLKRM=0, PDIR.ACLKR=0 ACLKR external output: ACLKRCTL.CLKRM=0, PDIR.ACLKR=1 (2) There is a clock ratio requirement between the system infrastructure clock, SYSCLK3, and the McASP0 bit clocks, ACLKR/ACLKX. For proper device operation, the ACLKR/ACLKX frequency must be no faster than ½ of SYSCLK3 frequency. 206 Peripheral Information and Electrical Specifications Copyright © 2007–2009, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TMS320C6424 |
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