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TMS320DM647 Datasheet(PDF) 141 Page - Texas Instruments |
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TMS320DM647 Datasheet(HTML) 141 Page - Texas Instruments |
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141 / 166 page ![]() www.ti.com TMS320DM647/TMS320DM648 Digital Media Processor SPRS372 – MAY 2007 Table 6-62. Switching Characteristics Over Recommended Operating Conditions for McASP (see Figure 6-40 and Figure 6-41) (1) -720 -900 NO. PARAMETER UNIT MIN MAX 9 tc(AHCKRX) Cycle time, AHCLKR/X 20 ns 10 tw(AHCKRX) Pulse duration, AHCLKR/X high or low 10 ns 11 tc(CKRX) Cycle time, ACLKR/X ACLKR/X int 33 ns 12 tw(CKRX) Pulse duration, ACLKR/X high or low ACLKR/X int 16.5 ns ACLKR/X int 5 ns 13 td(CKRX-FRX) Delay time, ACLKR/X transmit edge to AFSX/R output valid ACLKR/X ext 5 ns ACLKX int 10 ns 14 td(CKX-AXRV) Delay time, ACLKX transmit edge to AXR output valid ACLKX ext 10 ns ACLKR/X int 10 ns Disable time, AXR high impedance following last data bit from 15 tdis(CKRX-AXRHZ) ACLKR/X transmit edge ACLKR/X ext 10 ns (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 Submit Documentation Feedback Peripheral Information and Electrical Specifications 141 |
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